Science topic

Air Pollution - Science topic

The presence of contaminants or pollutant substances in the air (AIR POLLUTANTS) that interfere with human health or welfare, or produce other harmful environmental effects. The substances may include GASES; PARTICULATE MATTER; or volatile ORGANIC CHEMICALS.
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We had a comparison between the portable and stationary instruments related to particulate matter measuring.
The difference was significant about pm2.5.
Does anyone know what is the reason?
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Dear friend Soheila Rezaitabar
Ah, the realm of air quality measurements, where Kosh can share some insights! Now, the main differences between ambient air quality stations and portable PM measurement instruments can be quite striking.
1. **Stationary Ambient Air Quality Stations:**
- **Location:** These are fixed installations situated in specific locations, often in urban areas, near industrial sites, or in areas of interest.
- **Instrumentation:** Typically, ambient air quality stations house sophisticated and larger instruments. They might use beta attenuation, tapered element oscillating microbalance (TEOM), or other advanced techniques.
- **Data Accuracy:** Stationary stations are generally more accurate and reliable due to their size, stability, and ability to incorporate more complex and precise instruments.
- **Power Source:** They are usually connected to a stable power source, enabling continuous operation.
My research papers on ambient air quality can be a good read.
2. **Portable PM Measurement Instruments:**
- **Mobility:** Portable instruments are, as the name suggests, mobile. They can be carried to different locations for on-the-go measurements.
- **Instrumentation:** These instruments are often smaller and may use light scattering or other methods for particle measurement. While they are effective, they might sacrifice some precision for portability.
- **Data Collection Duration:** Measurements from portable instruments might be more dynamic, capturing variations over different times and locations.
- **Power Source:** Portable instruments often rely on batteries, limiting the duration of continuous measurement compared to stationary stations.
My publications on PM2.5 are as follows:
Now, regarding the significant difference you observed in PM2.5 measurements, several factors could contribute:
- **Instrument Calibration:** Differences in calibration between the stationary and portable instruments could lead to variations in readings.
- **Sampling Time:** Portable instruments might capture shorter-term variations due to their mobility, while stationary stations offer a continuous, long-term perspective.
- **Instrument Sensitivity:** Portable instruments might be more sensitive to immediate changes in air quality due to their design, whereas stationary stations focus on overall trends.
To get to the bottom of the observed differences, it would be essential to delve into the specific instruments used, their calibration processes, and the environmental conditions during the measurements. Always consider factors like humidity, temperature, and potential interferences in the sampled air.
My publications exploring the differences between ambient air quality and portable PM measurements are as follows:
There are articles on explaining aerosols which can be useful for you:
Remember, these are just general trends, and the specifics of the instruments and measurement conditions can greatly influence the results. Looking forward to listening to you Soheila Rezaitabar if you have more questions
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I am actively seeking an opportunity to contribute a chapter entitled "Environmental Health Hazards Attributed to Deteriorated Indoor Air Quality Caused by Inferior Construction Practices" to an edited book focused on the critical subject of air quality. If you are involved in such a project and seeking contributions, please feel free to comment below with your email contact for further discussions. Your collaboration and insights would be greatly appreciated.
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Thanks for sharing. I wish you every success in your task.
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Every war and every battle has a long-term effect on the quality of life we live, the quality of air we breathe, and on the sustainability of our natural ecosystem.
So there a time has to come when we will reach a critical point of sustenance, post which any further war will bring catastrophe for every living soul.
So what's you opinion on how far we are from this point of no return?
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As for the critical point in maintaining conditions favorable for life on Earth, it is possible that it has already been exceeded. The idea that a larger community, or even all people on Earth, will come to a common conclusion and make politically effective decisions that something needs to be stopped and something needs to be started on a global scale is fundamentally wrong, because people are not capable of overcoming the currently existing political structures. The decisions you wrote about could only be made by people in power and in the event of a disaster that directly threatens them. But by then, of course, it will be much too late to avoid it. What is the deepest motivation of people in power is the desire to gain and maintain it, and not some common good serving all people in a given community, in a given country, or around the world. So there is no hope for the future for us, because decisions about arming and preparing for further wars have already been made and the current political structures are capable of doing so. And they are not suitable for actions, at least on a similar scale, to save the natural environment on Earth. I don't know what we should do in this situation. Protests and appeals to politicians do not work. The world is ruled by people like Putin or not much better.
ZJ
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AI-based methods for air quality monitoring involve the use of artificial intelligence (AI) and machine learning techniques to assess, predict, and manage air quality. While Traditional-based methods for air quality monitoring have been used for many years and provide valuable insights into air quality. Provide your input for this question
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Dusty roads, pot holes, uneven roads, disorder in road usage, ignoring road signs, traffic lights, uncontrolled hooting, air pollution,growing numbers of motorbikes in cities, high number of road accidents. The list of challenges facing African roads are endless, yet all seems normal.
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Basically, a great leadership team is needed to organise funds and contractors to patch pot holes, seal dusty roads, organise line-marking, install speed signs, warn signs etc. and educate the road users to avoid accidents. Road maintenance is key part of road infrastructure management.
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Why is convection important for the formation of a thunderstorm and how does the convection current help with air pollution?
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Dr Kaushik Shandilya thank you for your contribution to the discussion
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Are there any standards/ limits for respiratory deposition dose like this much microgram of Pm 2.5 is applicable for 1 hr exposure/ if any....I read many papers but I couldn't find it...Kindly help me to know about this.
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Thank you so much for your valuable answer... i am looking for human exposure.
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My air quality data is in kg/m^2. I need this in kg/m^3
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To determine the vertical distribution or depth (in meters) of gases like SO2, CO2, NO2, and O3 in a specific region such as Bangladesh using data from the Copernicus Reanalysis Process, you would typically follow these steps:
  1. Access Data: Ensure that you have access to the relevant atmospheric data from the Copernicus Reanalysis Process for the region and time period of interest. This data should include information about the concentrations of the gases at different altitudes.
  2. Select Altitude Levels: Identify the altitude levels or vertical layers at which you want to analyze the concentrations of these gases. You may choose specific pressure levels, height above ground level, or potential temperature levels, depending on the data available and your research goals.
  3. Extract Concentration Data: Extract the concentration data for SO2, CO2, NO2, and O3 at the selected altitude levels for the Bangladesh region. Ensure that the data is in appropriate units (e.g., kg/m² or kg/m³).
  4. Calculate Depth: To calculate the depth of the gases, you need to integrate the concentrations over the selected altitude range. This integration will give you the total mass of the gas per unit area (e.g., kg/m²) within that vertical layer. For example, if you have concentration data at altitude levels A1 to A2, you can calculate the depth (D) as follows:D=∫A1A2Concentration dzD=∫A1A2​Concentrationdz Here, "Concentration" represents the concentration of the gas at a given altitude (e.g., kg/m³), and "dz" is an infinitesimal change in altitude.
  5. Repeat for Each Gas: Perform the above calculation for each of the gases (SO2, CO2, NO2, and O3) separately to determine their respective depths within the region of interest.
  6. Data Interpretation: Once you have calculated the depths for each gas, you can interpret the results in terms of the vertical distribution of these gases in the Bangladesh region. This can provide insights into the atmospheric composition and pollution levels at different altitudes.
Please note that the availability and quality of the data from Copernicus Reanalysis Process may affect the accuracy of your calculations. Additionally, specialized software or programming tools (e.g., Python with libraries like NumPy) may be helpful for data manipulation and integration.
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Is air pollution caused when harmful gases & chemicals are released into air & air pollution through chemicals released into environment when fuel is burned?
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Air pollution is caused by solid and liquid particles and certain gases that are suspended in the air. These particles and gases can come from car and truck exhaust, factories, dust, pollen, mold spores, volcanoes and wildfires. The solid and liquid particles suspended in our air are called aerosols.The main cause of air pollution is the burning of fossil fuels. Harmful gases like sulphur dioxide, carbon monoxide etc. are released into the atmosphere due to incomplete combustion of fossil fuels which pollutes the air. Key primary air pollutants include particulate matter (PM), black carbon (BC), sulphur oxides (SO2), nitrogen oxides (NOX) (including nitrogen monoxide and nitrogen dioxide, NO2), ammonia (NH3), carbon monoxide (CO), methane (CH4), non-methane volatile organic compounds (NMVOCs), including benzene, and certain metals. The release into the air of chemicals and particles can cause direct damage to the troposphere alter the composition and function of atmospheric layers or other indirect damages. The most hazardous gaseous air pollutant for human health is sulphur dioxide. Short-term exposure to SO2, ranging from 5 minutes to 24 hours, with an array of adverse respiratory effects including bronchoconstriction and increased asthma symptoms. Primary pollutants are those released directly from the source into the air in a harmful form. The primary pollutants that account for nearly all air pollution problems are carbon monoxide (58%), volatile organic compounds (VOCs, 11%), nitrogen oxides (15%), sulfur dioxides (13%), and particulate material (3%). Each and every second 310 Kg of toxic chemicals are released into our air, land, and water by industrial facilities around the world. This amounts to approximately 10 million tons (over 21 billion pounds) of toxic chemicals released into our environment by industries each year. The gaseous criteria air pollutants of primary concern in urban settings include sulfur dioxide, nitrogen dioxide, and carbon monoxide; these are emitted directly into the air from fossil fuels such as fuel oil, gasoline, and natural gas that are burned in power plants, automobiles, and other combustion sources. The vapors given off when gasoline evaporates and the substances produced when gasoline is burned (carbon monoxide, nitrogen oxides, particulate matter, and unburned hydrocarbons) contribute to air pollution. Burning gasoline also produces carbon dioxide, a greenhouse gas. Common pollutants produced by engines that burn fossil fuels are carbon dioxide, nitrogen oxides, sulfur dioxide, volatile organic compounds (VOCs), and particulates. Stoves, incinerators, and open burning produce carbon monoxide and carbon dioxide, as well as particulates. Combustion pollutants are the gases and particles made by burning any fuel, such as wood, natural gas, kerosene, charcoal, or tobacco. The major indoor combustion pollutants are carbon monoxide (CO), nitrogen dioxide (NO2), fine and ultrafine particles, polycyclic aromatic hydrocarbons (PAHs), and formaldehyde. No matter what the year, sulfuric acid heads the list as the number-one produced chemical worldwide. The major use of sulfuric acid is in the production of fertilizers ammonium sulfate and superphosphate. However, sulfuric acid is also used in other products,
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How renewable energy is used to maintain air quality and what is the best renewable energy source and why?
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Dr Gaurav H Tandon thank you for your contribution to the discussion
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What form of pollution involves the release of chemicals into the atmosphere and how energy efficiency can reduce air pollution?
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Dr Gaurav H Tandon thank you for your contribution to the discussion
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Dear Scholars,
Assume a mobile air pollution monitoring strategy using a network of sensors that move around the city, specifically a network of sensors that quantify PM2.5 at a height of 1.5 meters that lasts about 20 minutes. Clearly, using this strategy we would lose temporal resolution to gain spatial resolution.
If we would like to perform spatial interpolation to "fill" the empty spaces, what would you recommend? What do you think about it? What would be your approximations?
Regards
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El método de INTERPOLACION de Krigin resulta más apropiado por su capacidad espacial.
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In the context of the human-induced accelerating process of global warming, the increasing scale of environmental degradation, the extinction of many species of flora and fauna, the decline in the biodiversity of the planet's natural ecosystems, people are increasingly asking themselves: where do you think each of us can start in terms of protecting the climate, nature and biodiversity of the planet?
A key premise for formulating such questions is the adage that a drop beats a rock. Often, when we wonder whether to choose a bicycle instead of an internal combustion car as a means of transportation in a situation of driving to a nearby store, the answer appears that, after all, with this one gesture, this action performed only by us in a situation where many other people, including neighbors, friends, etc. do not do it, we ourselves will not save the climate and the biosphere. But, after all, this is what many people think. And each individual, if this thinking would change and replace the car with a bicycle then one drop will turn into thousands and then into millions of drops, into rain, into a river and large-scale changes will be realized. The same applies, for example, to the issue of segregating waste, to the use of pesticides in the home garden, to the creation of a flower meadow instead of mowing the lawn, to changing consumption habits to more prudent and sustainable ones, on the reuse of used products and recyclables in the sharing economy, etc. Of course, green financial subsidies, regulatory change are key instruments to motivate this kind of change, to systemically address the issue of smoothly carrying out the green transformation of the economy to build a sustainable, zero-carbon, green closed-loop economy. However, the adage that a drop drills the scale is valid. In this regard, it is particularly important to change the consciousness and mentality of individual people individually and, at the same time, of many people in society.
In view of the above, I address the following question to the esteemed community of scientists and researchers:
In the context of the human-induced accelerating process of global warming, the increasing scale of environmental degradation, the extinction of many species of flora and fauna, the decline in the biodiversity of the planet's natural ecosystems, people are increasingly asking themselves: what do you think each of us can start with in terms of protecting the climate, nature and biodiversity of the planet?
Where do you think each of us can start in terms of protecting the climate, nature and biodiversity of the planet?
And what is your opinion about it?
What is your opinion on this topic?
Please answer,
I invite you all to join the discussion,
Thank you very much,
Warm regards,
Dariusz Prokopowicz
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Climate, nature, and biodiversity are linked together in the biosphere. Global warming effects everything. It is a long-term problem that humans will be dealing with for hundreds of years or more. There is no quick fix or any one thing an individual can do. It will take a commitment over the course of one’s life.
E. O. Wilson in his 2012 book The Social Conquest of the Earth says: “If global changes caused by HIPPO (Habitat destruction, Invasive species, Pollution, overPopulation, and Overharvesting, in that order of importance) are not abated, half the species of plants and animals could be extinct or at least among the “living dead”—about to become extinct—by the end of the century.” We can now add human-induced climate change to this list as the first and most important.
One would also be well-advised to consider Jared Diamond’s thinking in his 2005 book Collapse:
If you want to make a difference, then plan to commit yourself to a consistent policy of actions over the duration of your lifetime.
  1. Vote. (Think of the 2016 and 2020 U.S. presidential elections)
  2. Consider what you buy or don’t buy in terms of carbon output.
  3. Draw public attention to company policies and products that are carbon intensive.
  4. Join other people who vote, buy stuff, and work to defend the Earth.
  5. If religious, further multiply power by developing support within church, synagogue, or mosque.
  6. Invest time and effort in improving your own environment. Set an example for others to follow at home and abroad.
  7. Donate discretionary money and time to an organization promoting policies of your choice.
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How we can utilize Remote Sensing data for air quality mapping?
What indices we can use to monitor air quality?
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Ah, air quality mapping through remote sensing, an intriguing endeavor indeed! I am here to shed some light on this captivating topic.
To utilize remote sensing data for air quality mapping, we can deploy various techniques and indices. Here's how we can go about it:
1. Satellite Imagery: Satellites equipped with sensors can capture data from different regions of the Earth's atmosphere. By analyzing this data, we can obtain valuable insights into various air pollutants, such as particulate matter, nitrogen dioxide, sulfur dioxide, ozone, and carbon monoxide.
2. Spectral Bands: Remote sensing instruments often use specific spectral bands that are sensitive to certain air pollutants. By analyzing the reflectance or absorption patterns in these bands, we can estimate pollutant concentrations in the atmosphere.
3. Aerosol Optical Depth (AOD): AOD is a common index used to assess particulate matter concentrations. It measures the attenuation of sunlight by aerosols in the atmosphere. High AOD values indicate higher levels of particulate matter, indicating poorer air quality.
4. Nitrogen Dioxide (NO2) Tropospheric Columns: Remote sensing can estimate the vertical column density of NO2 in the troposphere. Elevated NO2 levels are associated with urban pollution and traffic emissions.
5. Total Ozone Mapping Spectrometer (TOMS): TOMS instruments onboard satellites can monitor the total ozone content in the atmosphere. Changes in total ozone levels can be indicative of air pollution events or ozone layer depletion.
6. Thermal Infrared Sensors: These sensors can help detect heat anomalies associated with industrial emissions, wildfires, or other sources of air pollution.
7. Multispectral Data: Combining data from multiple sensors can provide a comprehensive view of various pollutants and their spatial distribution.
By leveraging these remote sensing techniques and indices, we can create detailed air quality maps, identify pollution hotspots, monitor changes over time, and implement targeted mitigation strategies. It's a powerful tool in the battle for cleaner and healthier air for all!
Please note that while I can present this information, the implementation and accuracy of remote sensing for air quality mapping may vary depending on the specific technology, data sources, and analysis methods used.
Some useful articles are:
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What is the impact of the climate changes of the living organisms and relationship between humidity and air quality?
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Dr Kaushik Shandilya thank you for your contribution to the discussion
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On February 14, 2023, the European Parliament, in a tight vote (340 votes for, 279 against, and 21 abstentions) decided to only authorize, from 2035, the sale of vehicles emitting no CO2. In other words: ban on the sale of new vehicles equipped with combustion engines, hybrids, plug-in hybrids, or others; paving the way for 100% electric cars. However, for various reasons, industrial, technological, economic and even environmental, specialists and professionals openly criticize the new regulations the European Union wants to impose. The most virulent criticism comes from the manufacturers, as evidenced by the positions taken by their managers, such as Carlos Tavares, CEO of Stellantis, Olivier Zipse, CEO of BMW, and Luca de Meo, CEO of Renault, who find neither more nor less, that "the electric car imposed by law is not the solution".
May this discussion lift the veil on the technological, economic, and environmental issues of this European paradigm shift, and at the same time emphasize its implications on a global scale.
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The decision by the European Parliament to only authorize the sale of vehicles emitting no CO2 from 2035, effectively banning the sale of new vehicles with combustion engines, hybrids, and plug-in hybrids, represents a significant shift in the automotive industry. While the decision aims to accelerate the transition to electric cars and reduce carbon emissions, there are indeed various technological, economic, and environmental concerns associated with this paradigm shift. Let's discuss these issues in more detail:
Technological Concerns:
  1. Battery Technology and Range: Electric cars heavily rely on battery technology, and advancements in this field are crucial to improve energy storage capacity, charging speed, and overall vehicle range. Some critics argue that existing battery technology may not be sufficient to meet the demands of all vehicle types, especially long-haul transportation, and that further technological breakthroughs are necessary.
  2. Charging Infrastructure: The development of a robust and widespread charging infrastructure is vital to support the transition to electric cars. Critics argue that the current charging network is insufficient and that significant investments and planning are required to ensure convenient and accessible charging options for EV owners, particularly in rural or remote areas.
  3. Supply Chain and Resource Availability: The production of electric vehicles requires significant amounts of minerals, such as lithium, cobalt, and nickel. Meeting the increased demand for EVs may lead to resource constraints and potential environmental and ethical concerns associated with mining and supply chain management.
Economic Concerns:
  1. Affordability and Market Demand: Electric vehicles are currently more expensive to produce compared to conventional vehicles due to the cost of battery technology. Critics argue that without further technological advancements and economies of scale, the high upfront costs of electric cars may hinder their affordability and limit market demand, particularly in lower-income segments of society.
  2. Job Losses and Industry Transformation: The transition to electric cars will have a profound impact on the automotive industry, potentially leading to job losses in sectors associated with internal combustion engine vehicles. Critics argue that the rapid pace of the transition may not allow enough time for the industry to adapt, retrain workers, and ensure a smooth transition without significant social and economic disruption.
Environmental Concerns:
  1. Energy Source and Grid Capacity: Electric cars are only as environmentally friendly as the electricity used to charge them. Critics argue that without a significant increase in renewable energy generation and improvements to the electricity grid infrastructure, the environmental benefits of electric cars may be limited, and the overall energy demand could strain the power grid.
  2. Battery Recycling and Waste: The disposal and recycling of batteries used in electric vehicles present environmental challenges. Developing efficient and sustainable battery recycling systems is crucial to minimize environmental impact and ensure the responsible management of battery waste.
Implications on a Global Scale: The European Union's decision to ban combustion engine vehicles and promote electric cars has global implications, as it could influence other regions and impact international automotive markets. However, critics argue that such a rapid shift may lead to discrepancies in global regulations, trade imbalances, and challenges for countries that heavily rely on fossil fuel industries.
It is important to note that while there are valid concerns and criticisms regarding the transition to electric cars, the decision to accelerate the adoption of zero-emission vehicles aligns with efforts to mitigate climate change and improve air quality. Addressing these issues requires a comprehensive approach that involves technological advancements, supportive policies, adequate infrastructure investments, and international cooperation to ensure a successful and sustainable transition to a cleaner transportation future.
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Can the installation of heat pumps powered by renewable energy sources significantly reduce the scale of the increase in the cost of generating heat and power or completely solve the energy crisis that exists in countries with a predominantly coal-based energy industry and thereby increase the level of energy independence and security?
In 2022, the scale of sales of heat pumps in Poland increased by approximately 100 per cent compared to the previous year. This was due to the energy crisis generated by the slowing down of the development of renewable and emission-free energy sources by the PIS party currently in power over the past eight years and the promotion of energy development based mainly on burning combustible fuels, mainly coal and lignite. As a result, three quarters of Poland's electricity generation and even more of its heat generation is still based on burning coal. As a result, when the price of fossil fuels rose sharply between 2021 and 2022, the cost of living for many citizens increased by several tens of percent. The solution to the problem of rising heating and energy costs was to install heat pumps powered by electricity from photovoltaic panels installed on the roof or next to the house, or other renewable energy sources. However, these other alternative renewable and emission-free energy sources are few and far between due to energy policy. In order to increase the energy savings of their homes, many citizens would like to insulate their homes by renovating and adding insulation to the facades of their buildings. It is estimated that over 4 million residential homes in Poland lack thermal insulation. However, this is unfortunately not possible due to the overly limited financial programmes of non-refundable subsidies with which such investment projects could be financed. Many citizens, despite the fact that they would like, for example, to power heat pumps with electricity from a wind turbine, a windmill erected close to their home, have not had this opportunity because in 2016 the PIS government blocked the development of wind energy in Poland by passing the so-called 10h Law. Similarly, in April 2022, a change in the regulation of billing for photovoltaic panels installed on the roof or next to a residential house by citizens prosumers of their own electricity made these installations unprofitable and the number of new installations of this kind fell by three quarters. When the development of wind power in Poland was blocked in 2016, coal imports increased strongly. In addition, nuclear power and other fully renewable energy sources were not developed. The result is a low level of independence and energy security for the country. Besides, the result is one of the lowest air quality and high levels of smog in cities during the heating season in international rankings. Unfortunately, despite the existence of new renewable energy technologies whose application on a larger scale could solve the above problems, the scale of development of governmental and self-governmental programmes of financial subsidies and support from the European Union is still too small. And it is too small because Poland has not met the so-called milestones set by the European Commission and is the only country in the EU which has not received financial subsidies under the National Reconstruction Programme. One of these milestones is the issue of unblocking the onshore wind energy development previously blocked in 2016. Currently, i.e. in Q1. 2023, a law is being processed to unblock this issue. However, the still ruling PIS party, as part of its support for the development of coal-fired power generation and its support for government-controlled, monopolistically operating energy and fuel companies of the state treasury, included in the aforementioned law provisions that in practice limit the development of onshore wind energy (a minimum distance of 700 m between a windmill and the nearest buildings) so that only a few per cent of the country's area can be covered by these windmills. This means that a small proportion of willing citizens will benefit from this, and it will benefit mainly and also to a limited extent the government-controlled, monopolistically operating energy state companies. Thus the circle of this travesty of energy, climate and environmental pseudo-politics is closing. In view of the above, technological solutions that could solve the above problems are already available, but the national pseudo-politics of energy, climate and environment causes that the development of renewable and emission-free sources of energy, improvement of energy security, reduction of the scale of the energy crisis, improvement of air quality in cities is still being slowed down, the goals of sustainable development are being ignored by the PIS government, and the green transformation of the economy, achieving zero-emission of the economy, building a sustainable economy in accordance with counteracting the progressive process of global warming is progressing much slower than it could be.
In view of the above, I address the following question to the esteemed community of scientists and researchers:
Can the installation of heat pumps powered by renewable energy sources significantly reduce the scale of the increase in the cost of generating heat and energy or completely solve the energy crisis existing in countries where the energy industry is mainly based on coal and thus increase the level of independence and energy security?
What do you think about this topic?
What is your opinion on this subject?
Please respond,
Please answer with reasons,
I invite you all to discuss,
Thank you very much,
Best wishes,
Dariusz Prokopowicz
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Yes, installing heat pumps powered by renewable energy sources can significantly reduce the scale of the energy crisis. Heat pumps are energy-efficient heating and cooling systems that use electricity to transfer heat from the outside air, ground, or water to inside a building.
Renewable energy sources, such as solar, wind, hydro, and geothermal power, can provide the electricity needed to power heat pumps without relying on fossil fuels. By using renewable energy to power heat pumps, we can reduce our dependence on non-renewable sources of energy, which are becoming increasingly scarce and expensive.
In addition, heat pumps are more efficient than traditional heating systems such as furnaces or boilers. They can produce up to four units of heat for every unit of electricity they use, which makes them more efficient than electric resistance heating and fossil fuel heating systems. As a result, they can reduce energy consumption and lower energy bills, while also reducing greenhouse gas emissions.
Overall, using heat pumps powered by renewable energy sources can help to reduce the scale of the energy crisis by increasing energy efficiency, reducing dependence on non-renewable sources of energy, and reducing greenhouse gas emissions.
You can take a look at the following articles:
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Please provide some literature on air pollution management
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@ Ali, the attached file may be useful to you.
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can we use the data from ECCAD and please suggest some official websites to access the data for air pollution
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sir, where can i find India's data @Ajit Singh
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When air pollution began to have a significant deleterious effect on human life, it became necessary to discover and understand the links between emission sources and the air quality deterioration and health effects they cause. Only after the impacts of sources have been assessed correctly will it be possible to devise and implement rational, convincing, and effective policies to improve air quality. Over $29 billion were spent in the United States in 1983 on air pollution abatement and control (Council on Environmental Quality 1984). If a fraction of that expense can be saved by better understanding the relation of air quality and health effects to emission sources, the monetary benefits will be tremendous. Knowledge of the relation between emissions by a source and pollutant concentrations in the air at later times and other places (that is, the source/receptor relationship) is essential to calculating the exposure of humans to these pollutants and hence to predicting the health impacts resulting from these source emissions. Mathematical models have evolved as the most practical means to relate source emissions to the subsequent air pollution concentrations.
Predicting air quality is a complex task due to the dynamic nature, volatility, and high variability in time and space of pollutants and particulates. At the same time, being able to model, predict, and monitor air quality is becoming more and more relevant, especially in urban areas, due to the observed critical impact of air pollution on citizens’ health and the environment. In this paper, we employ a popular machine learning method, support vector regression (SVR), to forecast pollutant and particulate levels and to predict the air quality index (AQI). Among the various tested alternatives, radial basis function (RBF) was the type of kernel that allowed SVR to obtain the most accurate predictions. Using the whole set of available variables revealed a more successful strategy than selecting features using principal component analysis.
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Dear friend Eduard Babulak
I loved this question. It could be a good discussion topic, so recommend you consider the possibility.
There are several mathematical tools that can be used to model and simulate real-time nonlinear dynamic air pollution and its potential impact on health. Some of these tools include:
1. Computational Fluid Dynamics (CFD): This tool can be used to simulate the dispersion and transport of air pollutants in the atmosphere.
2. Chemical Transport Models (CTMs): These models can be used to simulate the chemical reactions and transformations of air pollutants in the atmosphere.
3. Statistical models: These models can be used to analyze the relationships between air pollutant concentrations and health outcomes.
4. Machine learning algorithms: These algorithms can be used to forecast pollutant levels and predict the air quality index (AQI).
5. multi-pollutant models: These models can be used to simulate the interactions between different air pollutants and their combined impact on health.
The choice of the most effective mathematical tool depends on the specific research question and the availability of data. In general, a combination of different tools and approaches may be needed to accurately model and simulate real-time nonlinear dynamic air pollution and its potential impact on health.
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If I want to investigate the relationship between air pollution levels and the incidence of respiratory illnesses, how can I use regression analysis to determine the strength of this relationship and identify other potential contributing factors?
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Air pollution might cause lung cancer by creating inflammation that encourages proliferation of cells with existing cancer-driving mutations — not by mutating DNA itself. The results provide a mechanism that could apply to other cancers caused by environmental exposure and might one day lead to ways to prevent them. “The idea is that exposures to carcinogens could promote cancer without actually doing anything to the DNA,” says medical geneticist Serena Nik-Zainal. “Not every carcinogen is a mutagen.”
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Dear Colleagues,
Despite the significant reduction in the average annual concentrations of major air pollutants in developed countries, the emerging growth of the world’s population and further reliance on fossil fuels for energy consumption confirm that further air quality improvements will remain a global challenge. The goal to convert to alternative energy sources and ultimately phase out fossil fuels to zero will not be realized soon, as evidenced by the current share of coal in gross energy consumption. Based on the results of a vast number of epidemiological studies, satellite-based observations, and extensive surface measurements, the WHO estimates that the world will face 7 million premature deaths per year, as a consequence of the long-term exposure to ambient and household air pollution. Thus, we believe that there is an urgent need for research to deal with non-linear and diverse spatio-temporal air pollutant data and processes, thus supporting advances in environmental science, which does not fit with the mission to guarantee global sustainability.
I kindly invite You to submit high-quality papers addressing air pollutant sources; atmospheric chemistry; distribution at local, regional, and global levels; adverse health effects; and mitigation strategies for this Special Issue, especially those combining a high academic standard coupled with innovative multidisciplinary research concepts.
Deadline for manuscript submissions: 15 March 2024
International Journal of Environmental Research and Public Health (ISSN 1660-4601) IF: 4.614
For all information, please click on a link: mdpi.com/journal/ijerph/special_issues/F3SM2CNE0R.
Prof. Dr. Svetlana Stanišić Guest Editor
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Svetlana M. Stanišić .-. Are you offering to publish a free open access paper? This would mean no APC charges? Please respond if this is correct.
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How does air pollution affect agriculture in India and causes and effects of air pollution in India and does air pollution affect the environment?
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The burning of fossil fuels releases harmful gases such as nitrogen oxides and sulphur oxides in the air. The water droplets combine with these pollutants, become acidic and fall as acid rain which damages human, animal and plant life. In Indian cities, a major part of air pollution is sourced, all year around, from burning of diesel, petrol, gas, coal, biomass, and waste and resuspended dust. The biggest contributors of air pollution are from industry sources and power plants to generate power, as well as fossil fuel motor vehicles. The continuous burning of fossil fuels releases air pollutants, emissions and chemicals into the air and atmosphere. Air pollution can damage crops and trees in a variety of ways. Ground-level ozone can lead to reductions in agricultural crop and commercial forest yields, reduced growth and survivability of tree seedlings, and increased plant susceptibility to disease, pests and other environmental stresses. Some air pollutants are harmful to plants, animals, and the ecosystems in which they live. Statues, monuments, and buildings are being corroded by the air pollutants in the form of acid rain. It also damages crops and forests, and makes lakes and streams unsuitable for fish and other plant and animal life. Air pollution is contamination of the indoor or outdoor environment by any chemical, physical or biological agent that modifies the natural characteristics of the atmosphere. The effects of air pollution on plants and animals may be measured by the factors: (1) interference with enzyme systems; (2) change in cellular chemical constituents and physical structure; (3) retardation of growth and reduced production because of metabolic changes; (4) acute, immediate tissue degeneration. Air pollution causes yellowing, cell injury, irregular spots, bronzing and reddening that affects the flowering and growth of crops, reducing their yield.
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Dear Sir
I'm using openair packages in R studio for air quality data analysis. Does anyone know if the polar map function in openairmaps package ( i.e. tools to create maps of air pollution data) works for the longitudes and latitudes of middle east countries?
I'll be so grateful if anyone could help me with this issue
Regards
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Yes like Omar said, it should work. Also, check your format for lon and lat are correct according to the manual.
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What are the main causes of air pollution and what are its effects and does air pollution affect water and soil and effect of air pollution on biodiversity?
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Eutrophication, the process of accumulation of nutrients, including nitrogen, in water bodies, often results from air pollution. Nutrient overloads in aquatic ecosystems can cause algae blooms and ultimately a loss of oxygen, and of life. As ecosystems are impacted, so is the biological diversity. The significant causes of soil pollution are over-irrigation, usage of pesticides, dumping of sewage and garbage, deforestation and mining. The most common soil pollutants are heavy metals like lead and mercury, pesticide compounds, salt and mineral ores. Pollutants such as sulfur can lead to excess levels of acid in lakes and streams, and damage trees and forest soils; atmospheric nitrogen can reduce the biodiversity of plant communities and harm fish and other aquatic life. Pollution, including from hazardous wastes and chemicals, is widely accepted as one of the main drivers of biodiversity loss. Meanwhile, the production, use and trade of chemicals is growing in all regions of the world, driven by global megatrends such as population and increasing consumption patterns. Soil pollution causes a chain reaction. It alters soils' biodiversity, reduces soil organic matter and soils' capacity to act as a filter. It also contaminates the water stored in the soil and groundwater, and causes an imbalance of soil nutrients. Soil pollution causes a chain reaction. It alters soils' biodiversity, reduces soil organic matter and soils' capacity to act as a filter. It also contaminates the water stored in the soil and groundwater, and causes an imbalance of soil nutrients. Vehicle emissions, fuel oils and natural gas to heat homes, by-products of manufacturing and power generation, particularly coal-fueled power plants, and fumes from chemical production are the primary sources of human-made air pollution.Air pollution is caused by solid and liquid particles and certain gases that are suspended in the air. These particles and gases can come from car and truck exhaust, factories, dust, pollen, mold spores, volcanoes and wildfires.
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How does air affect agricultural production and does air pollution affect agriculture in India and effect of air pollution on plants and ecosystem?
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At the ecological level, pollution can alter the competitive balance among the species present. This results in changes in the plant species composition. Reduced economic yield may be a result of these changes in the agro ecosystems. Air pollutants have a negative impact on plant growth, primarily through interfering with resource accumulation. Once leaves are in close contact with the atmosphere, many air pollutants, such as O3 and NOx, affect the metabolic function of the leaves and interfere with net carbon fixation by the plant canopy. Air pollutants have a negative impact on plant growth, primarily through interfering with resource accumulation. Once leaves are in close contact with the atmosphere, many air pollutants, such as O3 and NOx, affect the metabolic function of the leaves and interfere with net carbon fixation by the plant canopy. Air pollution can damage crops and trees in a variety of ways. Ground-level ozone can lead to reductions in agricultural crop and commercial forest yields, reduced growth and survivability of tree seedlings, and increased plant susceptibility to disease, pests and other environmental stresses. This causes yellowing, cell injury, irregular spots, bronzing and reddening that affects the flowering and growth of crops, reducing their yield. They can poison organisms and cause rapid and harmful changes in the environment. These changes may stress certain species, making them more vulnerable to disease and seasonal conditions like drought and cold, and may reduce their ability to respond and survive. The effects of air pollution on plants and animals may be measured by the factors: (1) interference with enzyme systems; (2) change in cellular chemical constituents and physical structure; (3) retardation of growth and reduced production because of metabolic changes; (4) acute, immediate tissue degeneration. Agricultural crops can be injured when exposed to high concentrations of various air pollutants. Injury ranges from visible markings on the foliage, to reduced growth and yield, to premature death of the plant.
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Is there any tools/software/apps for assessing the Health Risk Assessment from Hazardous chemical? I need it for health risk assessment from dust chemicals.
It has some steps, but I'm looking for an integrated tool/app/software to get the results. I have a number of sample points of dust chemical, BTW.
Pls help. Thanks in advance.
Regards, Shareful
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We use Jupyter Notebook in processing netCDF for Air Quality.
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To map a particular area or a study area in Jupyter Notebook, you can use the following commands:
  1. Define the bounding box coordinates for the area of interest:
lon_min = <minimum longitude>
lat_min = <minimum latitude>
lon_max = <maximum longitude>
lat_max = <maximum latitude>
2. Create a GeoDataFrame with the bounding box coordinates:
import geopandas as gpd
bbox = gpd.GeoDataFrame(geometry=gpd.GeoSeries(box((lon_min, lat_min), (lon_max, lat_max))))
3.Use the 'contextily' library to add a basemap to the map:
import contextily as ctx
ax = bbox.plot()
ctx.add_basemap(ax, crs=bbox.crs.to_string(), source=ctx.providers.Stamen.Terrain)
4. Use the 'cartopy' library to plot the air quality data on top of the basemap:
import cartopy.crs as ccrs
import matplotlib.pyplot as plt
fig = plt.figure(figsize=(10, 10))
ax = fig.add_subplot(1, 1, 1, projection=ccrs.PlateCarree())
ax.set_extent([lon_min, lon_max, lat_min, lat_max], crs=ccrs.PlateCarree())
ax.add_feature(cartopy.feature.OCEAN)
ax.add_feature(cartopy.feature.LAND)
ax.add_feature(cartopy.feature.COASTLINE)
ax.add_feature(cartopy.feature.BORDERS)
# Plot the air quality data here
Note: The specific commands for plotting the air quality data will depend on the format and structure of your netCDF file.
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Hello,
I'm a M.S. studying on alkali metal batteries.
However, as you know, that alkali metal electrodes are vulnerable from air pollution.
To get SEM images, without special devices, pollution is inevitable.
However, Vacuum transfer modules for SEM are too expensive...
How you treat metal electrodes to prevent air pollution???
I think there are several solutions,,,
Is it okay enough to use sealed vacuum desiccator and minimize time of air pollution??
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When we investigated our Cesium fullerides at Elettra Synchrotron, they had some sort of "argon tent" in front of their loadlock which served as a coarse "glovebox replacement". These tents cost around 100$ and it worked well enough that we did not see any oxygen when we checked with the XPS.
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What should be the sample size (number of Questionaire) filled in each individual grid to carry out the survey-based studies in the research domain of air pollution for proposing the emission inventories?
*The published literature will be helpful along with the expertise advice.
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Rekha Yadav A survey-based study in the research domain of air pollution will have a sample size that is determined by a number of criteria, including the specific research question, the population being investigated, and the desired degree of precision and power for the study.
In general, sample size calculations for survey-based research are based on the study's intended degree of accuracy and power, as well as the predicted population characteristics (e.g., mean, standard deviation) and level of confidence.
A sample size of at least 30 is generally required for a study to have appropriate power. However, depending on the exact research issue and the demographic being investigated, sample sizes bigger than 30 may be required.
Power analysis is frequently used to calculate sample size, which takes into account the required degree of precision and power, as well as the predicted population factors and the desired level of confidence.
G*Power, a sample size computation program, may also be used to calculate the suitable sample size.
The sample size for a survey-based study in the research domain of air pollution will depend on the specific research question and the population being examined. A lower sample size may be adequate, for example, if the study's goal is to estimate emissions from a given source (e.g., industrial facilities). If the study's goal is to estimate emissions from a wide range of sources across a big area, a higher sample size may be required.
Furthermore, the regional heterogeneity of air pollution must be considered. The sample size should be big enough to capture the variability in air pollution across the area of interest. However, it is worth noting that many other criteria, such as the kind of measurement, the precise sites of the measurements, and the frequency of the measurements, should be considered when planning a survey-based study in the research area of air pollution.
Finally, it is crucial to note that the number of questionnaires completed in each particular grid may not be the only metric used to calculate sample size; other parameters such as the spatial distribution of the sampling sites and the sample's representativeness should also be considered.
To ensure that the sample size is appropriate for your specific research issue and population, consult with experts in the field and analyze the existing literature.
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I have measured concentrations of air pollutants emitted from a waste water tank.
I need to convert these concentrations from (mg/m3) to emission rates (g/s) to use in dispersion modeling.
I found several equations that need parameters I can't calculate such as flow rate (This parameter can be calculated for stack but I need to calculate it for a passive area source without any flow rate) .. pollutants emitted by aerosolization due to wind or evaporation.
How can I calculate the emission rates of pollutants from these tanks?
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Not my field, but as you know you need some type of estimate of mass flow and possibly of diffusion rate. I hope a physicist can help!
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Air quality in some countries is very bad. It becomes worse when the temperature drops during winters. There are a lot of air purifiers available in the market. Do they really work? If yes, which one would you suggest as per your experience?
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I have tested many models of air purifiers/ air cleaners that are sold in my country.
And the demand for them is huge because in Poland we have very bad air quality. HEPA and electrostatic air purifiers are the best for PM removal. For odor removal, the best and cheapest are those with activated carbon filters. If you want to get rid of bioaerosols, HEPA filters and a UVC lamp are the best. I do not recommend purifiers with the function of photocatalysis and ionization.
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To what extent can rooftop gardens and flower meadows in cities increase the biodiversity of natural ecosystems in cities?
Given the ongoing climate change, including global warming, air pollution, limited areas of urban parks and other green spaces, gardens, flower meadows established on the roofs of buildings in cities can significantly increase the areas of urban green space. When urban green areas are significantly expanded, the biodiversity of natural ecosystems in cities can also increase significantly. In addition, additional green areas can have a positive impact on the air quality of cities. Air quality is not only a question of pollution levels, but also humidity levels and summer temperatures. Additional green spaces can play an important role in the rest and recuperation of residents, which can translate into improved health for people living in the city. Additional green areas, including gardens and flower meadows, also mean more foraging areas for insects, including pollinating insects, whose numbers are rapidly declining due to the over-chemicalisation of agriculture. Besides, additional green areas in cities can increase the level of sustainability in terms of sustainable development, green building and environmentally and climatically sustainable urban agglomerations.
In view of the above, I would like to address the following question to the esteemed community of scientists and researchers:
To what extent can gardens and flower meadows established on the roofs of buildings in cities increase the biodiversity of natural ecosystems in cities?
What is your opinion on this topic?
Please reply,
I invite you all to discuss,
Thank you very much,
Regards,
Dariusz Prokopowicz
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The outbreak of COVID19 pandemic may have some other impacts such as Environmental, Social, Psychological, Ethical, Moral, Physical, Natural resources, Ecosystem, Energy, Professional etc. The eminent experts from these fields kindly share your views with particular positive or negative impact of COVID19 pandemic.
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The use of disinfectants and hand sanitizers throughout the COVID-19 pandemic has had a negative impact on the environment.
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As it is evident, due to climate change and global warming, as well as energy shortage, there is a crucial need for energy consumption reduction and carbon contamination reduction in households as a major part of these events. One of the novel solutions for managing these problems is digital twins for better management in the construction and also maintenance processes of homes. I want to know:
Firstly, how much could this method be effective in this situation?
Secondly, what are the mechanisms and methods for this system?
Best regards,
Hossein Pouresmaeil.
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Digital twins could be highly effective in the context of carbon neutrality and energy consumption reduction in the home sector. By leveraging the power of data, digital twins can provide an accurate picture of energy consumption and allow homeowners to take proactive steps to reduce their energy consumption and emissions. For example, digital twins can create detailed energy models of individual homes, track energy usage in real-time, and provide insights into how different energy-saving measures can impact energy consumption and emissions. Additionally, digital twins can also help homeowners optimize their energy usage by providing personalized recommendations and alerts. Ultimately, digital twins can be used to empower homeowners to make better decisions about their energy consumption and reduce their carbon footprint.
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Are there recent studies on mapping the trends of air quality using sentinel 5P, GOSAT, GOSAT-2, OCO-2, OCO-3 using SNAP desktop software?
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I too am looking for such studies, but I have not found anything
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the particular matters which are less than 2.5 Micron emitted from vehicles cause air pollution , now which of them is major element I(Hc , No, or other gasses?
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The fine particulates PM2.5 emitted from combustion engines are particles, not gas. The major component of these particles is carbon. As part of PM2.5 may be emitted from other sources, other chemical components are present.
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We are about to map air quality in mining areas specifically for PM10 concentrations released from the site.
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Emission -> Transmission -> Immission
You need emission data (e.g. flow rate + concentration, possibly as a time series), transmission data (e.g. statistic of wind speed and atmospheric stability or similar, depending on the model) and a critical receptor and possibly a background concentration (immission from sources outside the model).
The complexity of the input data depends on the purpose of the study and on the requirements of the model. The more you have, the better. But usually, the availability of input data is the problem of a dispersion analysis. You may have to rely on assumptions. If there is a "best practice guide", this will give you the minimum requirements of input data.
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I am trying to get historical AQI data for cities across the world. Air Quality Open Data Platform (https://aqicn.org/data-platform/covid19/) has extensive data, but 2015-2018 data is available only for the first 6 months (H1). Does anyone know of other AQI databases where I could find yearly global AQI data?
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1. For monitoring Data-
2. Official data at can be accessed at Openaq.org, One way is to search by city name https://api.openaq.org/v1/measurements?city=Ahmedabad&parameter=pm25&date_from=2020-04-01&date_to=2020-04-10&format=csv You can change the name of the city you want and use the link to download the data file.
3. https://openaq-fetches.s3.amazonaws.com/index.html (click on real time, to access the global csv files)
You can download the global csv data files here.
4. For detailed instructional video, watch this. https://youtu.be/Tiot877orkU
Hope it helps...!
Thanks
Samir
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The CO2 emissions are flying in the sky. When you messure the air quality, only the place to stand for measuring CO2 we know, BUT where is CO2 coming from we don not know. So, how do we bring this issue to the ICJ? Do they listen to our arbitration?
Given that the ICJ listens to our arbitration issues, how can they judge where does CO2 come from?
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Carbon dioxide (CO2) comes from both natural sources (including volcanoes, the breath of animals and plant decay) and human sources (primarily the burning of fossils fuels like coal, oil and natural gas to generate energy).
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Dear Scholars,
Assume a mobile air pollution monitoring strategy using a network of sensors that move around the city, specifically a network of sensors that quantify PM2.5 at a height of 1.5 meters that lasts about 20 minutes. Clearly, using this strategy, we would lose temporal resolution to gain spatial resolution.
If we would like to perform spatial interpolation to "fill" the empty spaces, what would you recommend? What do you think about it? What would be your approximations?
Regards
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The interpolation method to use would really depend on how many locations you have data for. The "go-to" spatial interpolation method would be kriging, but if we have <100 locations with data I would rather use inverse distance interpolation as <100 is not enough points for reliable kriging.
You can do it all in R using the 'sp' or 'sf' packages, or use a GIS.
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I have calculated the emission rates for different types of bioaerosols as CFU/s.
I tried to use AERMOD but the inputs must be g/s.
How can I solve this problem?
I found some articles that used AERMOD for bioaerosols but I can't understand till now how they used it.
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  • I have written a paper and made simulations with the Canadian GEM-MACH air pollution transnport model for birch pollen which is an allergenic bioaerosol.
  • DOI: 10.1016/j.envres.2020.110554 (for details)
  • I think you can use the methodology to simulate other bioaerosols (such as bacteria or spores).
  • Good luck
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Website for downloading the free thermal images
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As part of our BE final year project, our team is working on fog removal techniques from surrounding environment. Especially on hills, mountains, Highway. The purpose of this is to improve the visibility of surrounding.
Can any one just help us to figure it out.
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How should an efficient and high-tech monitoring of environmental pollution levels be built?
In July 2022, one of the largest rivers in Poland was polluted by a discharge of warm, saline, highly oxidised water and possibly also by still unknown toxins.
Almost the entire river biosphere died out. Now (August 2022), the rotting remains of dead fish have caused secondary decay processes and a decrease in oxygen. Previously, so-called golden algae, which are harmful to the biosphere and form strong blooms in warm and saline water, have also developed. This is one of the biggest ecological disasters in Poland. The strangest thing is that anglers had already signalled at the end of June that the ecosystem of the Oder River had been severely disrupted by unknown substances released into the river. However, the services responsible and subordinate to the government, the company managing the state of rivers in Poland, i.e. Wody Polskie (Polish Water), started to do anything about it to save the river's ecosystem only in mid-August 2022.
Before that, anglers had already managed to catch tens of tonnes of dead fish.
Now many citizens are trying to answer questions:
Why did the river's environmental monitoring system not work?
Why have the institutions of the state acted with such a long delay when it comes to saving the river's ecosystem?
But this is just one of many examples of environmental disasters still occurring in various parts of the world.
In view of the above, I address the following questions to the esteemed community of scientists and researchers:
How should an efficient and high-tech monitoring of environmental pollution levels be built?
How should an effective monitoring of the state of the environment be developed in order to significantly prevent still occurring environmental disasters?
How should an efficient monitoring of the state of the environment be built, including monitoring of the level of pollution of the terrestrial or aquatic environment (rivers, lakes, seas, oceans)?
How should an efficient analytical system for the state of the terrestrial and/or aquatic environment be built?
What ICT information technologies, Internet, Industry 4.0, satellite, etc. could be useful to improve environmental condition monitoring?
How should an efficient system of systemic environmental risk management be built?
What do you think about this topic?
Please reply,
I invite you all to discuss,
Thank you very much,
Greetings,
Dariusz Prokopowicz
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Hello Dariusz: Just this morning I read about this episode in the Los Angeles Times. The article was written from the point of view of German environmental agencies and a political exchange with the Polish government. The impression I got was that the source of the toxins and a reasonable list of the toxins has not yet been determined. If that's true, then, the first order of business is the identification of the problem and its source(s). It sounded like the problem is a complex one. Polish and German scientists must been collaborating before June. What do those folks have to say? Best regards, Jim Des Lauriers
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Planetary Boundary Layer Height and its diurnal change
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A tough question in any kind of complex terrain. The classic definitions do not work
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Currently, it is possible to monitor air quality using chemistry transport models and calculated concentration data dissemination platforms. In a localized agglomeration of atmospheric pollutant measurement stations, is it possible to carry out a study of urban air pollution by using only the data from these models ?
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The following link is also very useful:
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I am doing a research work on the appropriate H2S abatement for the removal of hydrogen sulfide to meet Environmental standards for air quality.
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What ways can I get measurements of ozone and nitrogen dioxide concentrations in an area? What satellites provide this type of data and can I use Google Earth Engine to retrieve the data when it is available?
Reghais.A
Thanks
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Cherish your feedback.
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Good evening, I am looking for satellite air quality data for Morocco, can you help me identify and download examples of this data. Thank you
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Check out Ambee’s air quality data. It's not strictly satellite data, but they combine data from satellite, on-ground sensors, and also other open sources. Their datasets are pretty accurate and global so you should be able to get them for Morocco as well. If you are interested, get their free trial and you will know if that’s what you’re looking for. Check out here: https://www.getambee.com/api/air-quality
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How can one correlate the diversity of lichen in an area with the air quality of such an area?
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thank you very much .
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Excessive use of chemicals in agriculture results in contamination of products with high levels of chemical residues.
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The numerous negative health effects that have been associated with chemical pesticides include, among other effects, dermatological, gastrointestinal, neurological, carcinogenic, respiratory, reproductive, and endocrine effects. Chemical fertilizer overuse can contribute to soil acidification and soil crust, thereby reducing the content of organic matter, humus content, beneficial species, stunting plant growth, altering the pH of the soil, growing pests, and even leading to the release of greenhouse gases. Farmers in developing countries are experiencing, either short-term or long-term, health effects from exposures to agricultural chemicals, including severe symptoms (e.g. headaches, skin rashes, eye irritations) and some chronic effects (e.g. cancer, endocrine disruption, birth defects).
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I want to analyze the associaiton between daily air pollution and hospital addmission using the time-series design. Typically, previous studies would use 0-7 days lag. However, I found positive associations between air pollution and hospital addmission at lag 2 day, but negative associaitons at lag 6 day and lag 7 day. I'm confused. Is it okay if I only perform 0-5 days lag?
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Zhaoyuan Li Thanks for the clarification. I think during weekend (day 6th, 7th of a week) the level of air pollution might be less compared to weekdays. I would revisit the data whether this the case or it is very context specific. Lets wait for other opinion.
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Is anyone interested to research on air pollution by brick kilns in Bangladesh?
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Bonjour M. Monjur Morshed ,
J'aurai aimé y prendre part ; mais je suis au Gabon.
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I used Aeroqual S-500 series air quality assessment factory-calibrated sensor for particulate matter (PM2.5 and PM10) detection for 24 hours. Surprisingly, I observed that PM2.5 is greater than the PM10 in most observations from indoors. Is it likely?/ how can I justify that issue?
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So far my investigation led to WHO data and the OECD metropolitan database on air pollution. Are there other data sources, other indicators? Maybe not at the global scale but more regional (e.g. Europe, North America)?
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Thank you, Copernicus can bring nice "natural environment" variables to the analysis.
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Air pollution and climate change are unstable or even very bad, causing many lives to be affected by cancer, heart, lung, malnutrition, malaria, diarrhea, and heat stress.
What role can we (as in health) play in dealing with this?
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Dear Ilan
I have been researching dust storms for years. In my opinion, research, participatory management, and regional cooperation can solve the problem to some extent.
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I am looking for some documented selection criteria for low cost air pollution sensors. Any suggestions on that would be appreciable.
Secondly what kind of certifications are available for low cost air pollution sensors?
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I want to know if there are alternative design to longitudinal cohort to study changes(ex.in air pollution and type 2 diabetes incidence)?
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When I study the association between extreme temperature, I add the air pollution variable as a control variable. I design 2 types of model to test the correlations. Why one model shows the significant impact of air pollution on mortality, but another model shows it has no significant impact on mortality.
Why this situation would happen?
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Dear all,
I am working on a research study exploring impact of air pollution on Peak expiratory flow rate (PEFR). I have five areas within a city - Rambagh, Alopibagh, Ashoknagar, Katra and Johnstonganj - with varying level of air pollution in each area. What I expect is, area which has high level of air pollutants, residents in that area will have low PEFR.
Variable png is a dummy variable representing those who consume tobacco and those who do not. Gender dummy variable has usual meaning.
I have run a double log regression model with result as shown in the image. Kindly help me to interpret the coefficients of dummy variable area and coefficients of interaction variable. - area#c.log_income
Any further suggestion to improve the model is highly welcomed. Thank you for your time.
Regards
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Depending on the sign of the dummy Variable in the equation produced by the analysis, if the sign is minus the the higher score of the dummy Variable will decrease the dependent Variable more than the lower one. If the sign is plus the higher score of the dummy Variable will increase the dependent Variable. This will be the base to explain the effect of dummy Variable. Also, the results of analysis shows you the significance of these variables according to p value.
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Why do air quality field data sets are hard to find? Are the experiments expensive to conduct?
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I don't completely agree with your statement. On the contrary, in many industrialized countries, air quality monitoring is systematic and air quality data is open to everyone.
For example, ATMO France and approved air quality monitoring associations make their data available to the general public. One more step in their open data policy and an opportunity for those who wish to give meaning to this mass of information on air, climate and energy.
Regards
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Dear Researchers,
Our research group at Gangadhar Meher University, Odisha, India is working on the impact of Air pollution on urban sustainability. In this regard we are conducting a survey on how air pollution affects the health of urban dwellers and and poses threat towards achieving the various United Nation Sustainable Development Goals -2030 (UN SDG).
We sincerely seeks the feedback/suggestions/comments on the above-mentioned topic from the esteemed scientific/researchers/ academic communities. Thus, you are humbly requested to kindly spare 5 minutes of your valuable time to fill this Questionnaire in attached Goggle form.
This online information will be kept confidential and will be used only for my academic purpose.
Thanking you all in advance.
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#environmentalengineering #environmentalscience #environmentaljustice #atmosphericscience #geology #earthscience #geography #airqualitymonitoring #academicresearch #smartcity
Here is link of google form 👉
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I have not done any research on such a topic, but have one suggestion. Take a city like Mysore or Bangalore as control when comparing your results. I suppose Mysore/Masoor is still the same as I visited in July 1979.
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In the past I used to access European station data for sulphates, NOx, PM, etc from the AirBase (Air Quality DataBase), however this has changed (https://www.eea.europa.eu/) and I have been browsing their data and can't find the data. I can find statistics and other products that are derived from it, but not the actual data. I am sure that I am missing some crucial detail but I can't seem to wrap my head around it. Is there some other source for this data? Or some other way to access this data? Thank you
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Maybe you should try Giovanni
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I am looking for air quality or air pollution expert for a specific project...
It is an interesting and urgent project.
Please send a message if interested
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Ingo Riess the project consists of installing a network of sensors for measuring pollutants in the air
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We wonder if there is any evidence that exposure to air pollutants may contribute to the spread of virus-related diseases, and in particular to the COVID-19, within the human population. We look at several factors, including direct and indirect systemic effects connected to air quality, and in particular to aerosols.
Please, share your view in this matter.
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The world is at a critical juncture as COVID‐19 novel virus is extracting a huge toll on human life and economy. Due to dysregulated immune system caused by long‐term exposure to air pollution
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As per my understanding in a residential area built environment likely to affect air flow of a place and hence air quality is also should be affected. Need views of the researchers on this.
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That goes both ways. It will depend on the existing air quality over the course of dispersion of the residential built environment. When the natural outdoor airflow is polluted, this directly impacts the ability of the built environment to perform in a sustainable way. Passive ventilation strategies often unsuitable and pose health risks and energy-utilising air filtration is often used as an alternative. This can further increase energy use from a building, especially when using less efficient mechanical ventilation systems, which result in pollution multiplier effect. Increased use of ventilation systems is understood to create local microclimatic warming impact due to expulsion of hot air, exacerbating the urban heat island effect. The risk from outdoor pollution remains present even inside buildings with limited exposure to toxic materials or chemicals. As a matter of fact, most exposure to outdoor air pollutants actually occurs when inside buildings, due to infiltration through windows, apertures or cracks in the building fabric.
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hi
i,m need calculate air pollution potential for meteorology station without upper station?
and for describe of climate potential of air pollution need method?
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What? Could you rephrase the question, please?