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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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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Hi there,
after scooping the known models, would like to learn more of the impact of:
-temperature
-humidity
on the CO₂ air quality indoors with all other input factors fixed.
Is its impact calculus or are there jump diffusions and reverse changing patterns in the impact on indoor air quality?
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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Dear Dr Okon Okon, please also visit the link below.
Liu, HJ., Fang, SB., Liu, SW. et al. Lichen elemental composition distinguishes anthropogenic emissions from dust storm inputs and differs among species: Evidence from Xilinhot, Inner Mongolia, China. Sci Rep 6, 34694 (2016). https://doi.org/10.1038/srep34694
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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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Hi everyone,
I'm trying to simulate the air pollution data to conduct linear regression models. The pilot data I collected showed a skewed distribution to the right as the environmental data.
Based on my understanding of the simulation packages in R that I read, to do the simulation, it is important to identify the data distribution not only based on my data but also from the literature. So, please, if you have articles that talk about air pollution data, share that with us. I will also appreciate your advice.
Thank you
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Abdul Almullhm -
Are you doing linear regression, or poisson, or what? Some kind of GLM is one thing, but you only list linear regression above in the key words.
I worked with a lot of skewed data with one or perhaps a few predictors, which were all skewed. If you have one skewed predictor, or multiple linear regression, you can check that, and other forms, for fit, using a "graphical residual analysis," which you can find described online. A "cross-validation" may help avoid too closely fitting to your sample such that your model may not generalize well to the population or subpopulation for which it is intended. (Also please consider heteroscedasticity, which is often a feature, not a bug.)
There are a couple of simple examples with skewed data here:
But you could say more about your model and data and goals to clarify what you are doing.
Best wishes - Jim
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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.
#research #university #sustainabledevelopment #sustainability #health #unsdgs #climateaction #climatechange #environmentalhealth
#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?
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I am looking towards learning the statistical analysis involved with the linkage of air pollution with health endpoints. The fundamental knowledge about time series analysis and epidemiology is critical. Would appreciate if resources can be shared about statistical data analysis
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You need to have a good data of long-term time series. It may give you to make regression analyses.
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I take several samples on Petri dishes for total bacteria and total fungi.
Can I identify genus and species using a simple low-cost methods?
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Is there any method available to extract air quality from Landsat data sets?
If yes. what is the procedure and what are the references to study?
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Globally, air shed management and planning has resulted in viable and constructive solutions to address urban air pollution. Real time monitoring of air pollution based on the data pertaining to the part of the atmosphere that behaves in a coherent manner with respect to dispersion of emission might be critical to comprehend the air quality of a place. I would like to invite a discussion on this aspect of pollutant dispersion.
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Hi Guys,
I'm trying to find air quality standards for the indoor work setting. I'm particularly interested in finding a surrogate analyte to monitor COVID to determine safe working conditions. This could be a combination of several analytes such as moisture, PM, etc. all ideas and suggestions are welcome.
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Thanks guys, this was really helpful.
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What height the instrument should be placed for measurement of ambient air quality and different gases as well as fetch area in agriculture?
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@ Kailash, I think the the height should be 1.5 m above ground.
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How would you rate the environmental protection activities undertaken in your country? Are these actions sufficient?
Are activities undertaken in the field of environmental protection insufficient? If they are insufficient, what do you think should be done in terms of increasing environmental protection efforts?
The problem of environmental protection currently does not apply only to the reductions emitted by industry, automotive industry and developing urban agglomerations of environmental pollution. The problem of environmental protection is increasingly connected with greenhouse gas emissions and gradual increase of temperature at the Earth's surface and related climate changes, increasing scale and frequency of weather anomalies and increasingly occurring climatic cataclysms. It is necessary to develop renewable energy sources and ecological innovations in energy and other areas of green economy development. It is necessary to increase the dimension in sustainable economies as soon as possible in order to slow down the global warming process and reduce the scale of environmental pollution and to increase the scale of projects undertaken to rehabilitate a degraded environment.
Do you agree with my opinion on this matter?
In view of the above, I am asking you the following question:
How would you rate the environmental protection activities undertaken in your country?
Please reply
I invite you to the discussion
Best wishes
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It is often poor, and the environment is subjected to daily deterioration due to the large number of factories and other things that have developed at the present time
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Air pollution load
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The best way to estimate the pollution on global or synoptic scale is by using the satellites data and imagery. In this context, there are two important variables: concentration and optical air mass.
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I'm suffering from condensation on Petri dishes that occurred after storing them in the fridge (as shown in the attached photos).
- I think it does not form pour media before reach to 45-50 °C (I leave media in the flask for sufficient time and too little condensation occurred).
- Also; I think it does not form storing media in the fridge before reach to room temperature (I leave prepared plates for 1.5 hours at least).
Why did that occur?
Can I leave Petri dishes at room temperature for 24 hours only till sampling time)?
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Dear
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When using the index of atmospheric purity in determining the level of air pollution using lichens, is there an ideal way or formula for determining the number of trees that must be sampled per site?
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Dear Researcher, you can calculate the Index Atmospheric Purity (IAP) by using lichens on this formula.
Air Quality Score (One area) = Total Air Quality Score for each tree in the study area/Number of trees in the study area
The resultant can be classified into the following groups which are given below.
[1] Score is >10 means the area is clean and pollution free.
[2] Score is between 0-10 i.e., is pollution level is moderately clean.
[3] Score is -10 to 0 then the area is slightly polluted.
[4] Score is < -10 i.e. the area is highly polluted.
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I want to come up with a project based on this air pollution that will be efficient.
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EIA was introduced in early 1960s with the aim to analyze a proposed developmental project for its negative impacts on environment and identify suitable mitigation measures. Initially EIA was limited to developed countries. In 1970s the impact analysis concept was transferred to developed countries. Initially it was practiced in an informal manner. But later on it became a mandatory activities accross the globe through proper legislation. Initially national environmental quality standards were introduced. In this way all methods developed for impact evaluation were kept aside and NEQS were used for comparison.
In the second step Initial environmental impact analysis was introduced for small scale projects and screening exercise was removed. In the 3rd step some treatments were made mandatory for some projects and monitoring and evaluation was removed. In this manner EIA was started as one formal step at the start of a project. Now EIA is not a continues activity. It is used to get No Objection Certificate (NOC) from environmental protection department.
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Dear Prof Nafees, There is wide doubt about strong environment laws, holding them responsible for economic loss. I agree with you in this regard!, In fact this question comes to our mind: Will environment regulation be weakened?
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Need data access
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Ramchandra Pageni , Thank you very much, for this question
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Hi all,
Do you have any methodology used to measure population exposure to outdoor PM2.5? I have temporal PM2.5 data and have a set of area wise census population data. In addition, I will have sample based socio-economic and health data too. How do I measure population at risk or their exposure?
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Thanks for the question. The answers also interest me
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I am looking for an expert advice on the effect of air pollution on food crops especially the staple crops(wheat , rice).
Thanks in advance.
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Have a look at the following attached document for insights.
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I will be using Atomic Absorption Spectroscopy to determine heavy metal concentration in lichens on trees. I chose this method because I will only be doing a one-time sampling. Instead of just studying lichens as an indicator of air pollution, can it be lichens as a bioindicator of pollution as a whole since the heavy metal concentration in lichens could be from different sources such as soil and water?
Thanks.
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Certainly not , its just an indicator...the concentration of heavy metals is a function of sink capacity ..
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As a hot area of research, do you recommend water sector or air?
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To me, both of them are very essential to study and they plays the important role to protect the living environments. We can not live well if the toxic pollutants in air and water) spread over permitted limit.
Best regards.
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I will be using Atomic Absorption Spectroscopy to determine heavy metal concentration in lichens on trees. I chose this method because I will only be doing a one-time sampling. Instead of just studying lichens as an indicator of air pollution, can it be lichens as a bioindicator of pollution as a whole since the heavy metal concentration in lichens could be from different sources such as soil and water?
Thanks.
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I think this book chapter could help you;
Analysis of Environmental Pollutants by Atomic Absorption Spectrophotometry, June 2012
That's available on the ResearchGate Server for download.
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Hi community!
I am looking for air pollution models, functions, open source tools, etc. that simulates the dispersion of emissions with reasonable run times. So simplified dispersion or reduced complexity dispersion models for example.
Application areas are the UK and Australia.
Any recommendations?
With many thanks.
Haneen.
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Hello!
I would start with inMAP:
Global, High-Resolution, Reduced-Complexity Air Quality Modeling Using InMAP(Intervention Model for Air Pollution)
I have never tried it but I would like to. You need to input shapefiles with annual emissions. It is fast, but you still need an annual WRF run for meteorology.
In UK, you could try with NAME:
For specific street emissions, you have:
Additional:
To estimate emissions I would recommend my model VEIN ( ) https://github.com/atmoschem/vein
And to convert the emissions into inputs for air quality model, I would suggest my model EIXPORT ( )
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Atmospheric Ozone layer are being depleted day by day, with our pollution activities. This atmospheric Ozone absorbs ultraviolet (UV) radiation from the sun, particularly UVB-type rays. But, in the past decade Ozone layer have damaged a lot with the uncontrolled uses of CFC gases. Ozone layer depletion is also going on nowadays, with our adverse emission activities. This damages creating ozone holes and UVB radiation can easily pass through the hole.
My question is, what's the impact of UVB radiation on marine ecosystems?
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Have a look at this useful RG link for insights.
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Common sense suggests that quarantine centers or ICU's where COVID patients are being treated have a high probability of transmission of virus especially to those providing assistance (doctors and nurses). My question here is there a measure to qualitatively or quantitively describe the air ( primary source of the virus spread) quality like PPM. If so how is the air quality in COVID affected areas different from COVID ICU's and how does it compare to COVID free areas. Can anyone please provide information or relevant literature on this topic.
Thanks in advance.
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Based on the data presented at the following site
we see that there are roughly two hundred quadrillion (2x10¹⁷ or two hundred million billion) virus particles in the world at any one time.
The back of the envelope estimates based on the above approximate number can easily give you the answer about the concentrations at the specific places such as medical centers.
For a more precise data please see also
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In the absence of reference stations, a low-cost sensor network can serve as a solid basis for an urban air quality assessment ?
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Yes indeed, they are already in practice in big cities for monitoring air quality on a real time basis and giving warning signals to residents ....
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Any recommendation as to which open source software to use for indoor air movement simulation? Thank you!
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Thank you Shady!
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Many publications are showing a notable decrease in air pollution in many cities around the world, since the start of this pandemic and especially since the instauration/generalization of lockdown in several countries. However, shouldn't we be afraid that as soon as the pandemic is over, there will be a kind of rebound effect?
Won't we assist to a recrudescence of all highly polluting human activities in order to compensate for the economic deficit induced by this slowdown in activities during the lockdown (therefore, leading to even higher levels of pollution than before) ?
So, finally, can we really (and confidently) say that this pandemic actually has a positive impact to the environment ?
Are there any modeling studies that have tried to assess this scenario?
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The real positive impact of COVID-19 on air pollution?
I think that the above statement is like this:
The real positive impact of you are being ill in a hospital on reducing your transportation expenditure?
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NOAA employs HYPSPLIT to model the transport and dispersion of harmful pollutants released into the atmosphere for both research and emergency response events. I've read a few early papers on the HYSPLIT analysis, and it's really useful for indicating the effects of long-range air mass transport over the studied regions via trajectories. What are the most fundamental things we need to know before diving in as a beginner? What's more, what's the difference between the registered and unregistered versions? It would be extremely beneficial if you could provide a simple tutorial on how to visualize the back trajectories.
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Hi,
If you consider to identify backward trajectories for environmental pollution , it’s necessary to apply the cluster system from Hysplit at 96 or 120 hours ,
use the hysplit model unregistered version is good !!!
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I am trying to access annual consumption of household energy or annual household or indoor air pollution data - country-wise. for the year 2020.
Does anyone know where I can find the latest data for the year 2020?
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In addition to what Mr. Ibrahim Sufiyan suggested to you, I also advise you to explore the data from HEI and IHME on the state of global air / 2020.
see the following link :
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I tried to estimate the correlation coefficient of AOD with water precipitation, and AOD with visibility for a short period of time. I found that for a long term data set, researchers have also measured good correlation at polluted cities. I am curious why it gives less correlation value, if we perform our study for a few months data?
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Dear @Sujan Prasad Gautam
Thank you very much.
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Hello dear researchers, is there any source (except Bangladesh Meteorological Department) to get the daily meteorological data (air quality, rainfall, temperature etc.) of the BMD stations of Bangladesh for the last 10 years for free?
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The sources of urban air pollution are generally related to the field of transport (combustion of hydrocarbons), catering (combustion of gas, wood, charcoal, etc.) or industrial. If we want to make an inventory of the fixed sources of smoke discharge, in particular by the combustion of charcoal, what are the parameters or variables to be taken into account during the field survey? and for what types of applications?
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Hello Robert,
You can find the details of all the parameters utilised for smoke discharges here:
Cheers,
Ankur
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I would like to measure the air pollution caused due to stone mines in the surrounding areas. So for this, what is the best method to identify sampling points.
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It depends on the number of mining areas. If they are few there is no need for sampling but if there are many then you can use fishers method for sampling.https://www.geopoll.com/blog/sample-size-research/
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AI-based techniques such as DNN, Fuzzy, SVM, and ANN show different forecasting performances for different pollutants such as Particulate matter,SO2, NO2.
Say for e.g. - DNN outperforms other techniques in PM forecasting
- SVM outperforms other techniques in SO2 forecasting.
I am curious to know about the deep logic behind this response of AI techniques.
P.S.- I know the source and origin of the air pollutants might be having some important role to play in this matter.
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Dear Adil,
Since you included SVM then you mean supervised machine learning algorithms (MLA). Some authors describe MLA as a subset of Artificial Neural Network (ANN). There are several reasons which make one algorithm better than the others in forecasting pollutants:
1- the size of the training set (the more training data are provided the better is the algorithm). In case the training set is small in this case some algorithms work better than others.
2- Type of kernel used with SVM as an example (Linear, polynomial, RBF...etc)
3- Size of the ANN network (number of neurons, number of nodes, number of layers)
4- Initial parameters setup such as % of validation, training, and test data
In general, ANN is a black box we can only see the result and base on this we can change the settings.
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There is a lot of research on AI-based air pollution forecasting, but very few have put up a reasonable explanation in this regard.
I want to know what might be the reasons for the performance drop ??
Is it a problem of data length or any other issue ??
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It's very simple. All forecasting methods are based on the search for patterns in the retrospective data and on the assumption (hypothesis) that these patterns will be valid in the future for the forecast period. In other words, it is assumed that the training sample is representative for a certain period in the future. This period is called the period of ergodicity. But this is an incorrect assumption. Sometimes the patterns in the modeled domain change. The period of ergodicity is violated. New patterns are being formed, although the old ones may remain. Therefore, the point of violation of ergodicity is called the bifurcation point. It is necessary to predict not only based on the patterns of the past period, but also to predict the risks of violating these patterns. I did it back in 1994: http://lc.kubagro.ru/aidos/aidos02/7.4.htm (see Figure 7.2).
Это очень просто. Все методы прогнозирования основаны на поиске закономерностей в ретроспективных данных и на предположении (гипотезе), что эти закономерности будут действовать и в будущем на период прогнозирования. Иначе говоря, предполагается, что обучающая выборка репрезентативна на определенный период в будущее. Этот период называется периодом эргодичности. Но это неверное предположение. Иногда закономерности в моделируемой предметной области меняются. Период эргодичности нарушается. Формируются новые закономерности, хотя могут оставаться и прежние. Поэтому точка нарушения эргодичности называется точка бифуркации. Надо прогнозировать не только основываясь на закономерностях прошлого периода, но и прогнозировать риски нарушения этих закономерностей. Я это делал еще в 1994 году: http://lc.kubagro.ru/aidos/aidos02/7.4.htm (см. рис. 7.2).
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Several papers have performed comparitive study of monthly and seasonal analysis of pollution concentration. They presented their results by plotting data as shown in the figure attached. Which tool can be used for these type of plots? Please can you suggest some manual or tutorials? Furthermore, can we plot it in MATLAB? Is there any sample code?
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As for a MATLAB solution, you may want to check out the 'm_map' toolbox:
With some tweaks and using 'm_contourf' function you should be able to plot these.
Also, to draw multiple plots in the same figure, you can use the built-in 'subplot' function.
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I wish to study air pollution in Nepal. Which one is better? Taking average of PM2.5 and PM10 from different stations OR studying air pollution indicators at each stations of a city ?
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Thank you very much, Sujan Prasad Gautam for the interesting topic of discussion! I wish you success!
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I am looking for online resources to download air-pollution data of some specific places for my research purpose.
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Dear Vinod Kumar,
Thanks a lot. This is what I was searching for. Indeed a great help.
Can not appreciate more.
High Regards,
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Whenever I search for papers on google scholar regarding my topic i.e. 'Economic Evaluation of the Impact of Air Pollution on Public Health in Delhi', most research papers are based on Atmospheric Sciences. I intend to focus my review on the aspect of Economics. Kindly help me with the most relevant search engines or techniques, that might make my search for relevant articles easy.
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If you have one or more papers related to your topic, I suggest you mine the bibliographies for leads. You will begin to find the researchers writing on the topic and who is in their network. Continue this process until you no longer find new names.
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Coronavirus lockdown causes big drop in air pollution ... The worldwide shutdown caused by the coronavirus outbreak has led to big drops in ... in the air normally result in NO2 and small particles reducing ozone levels.
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Yes
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i am currently working for my project "IMPACT OF URBANIZATION ON AIR QUALITY USING REMOTE SENSING" . now i want to analyze between urban area and air pollution . LAND USE REGRESSION model is the only method to determine or some other ways available. please help me with that!! thank you.
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@ Santhosh,
Please note that the Multi-angle Imaging SpectroRadiometer (MISR) instrument on NASA's Terra platform has been used to monitor atmospheric properties, including air pollution in the form of aerosols, since late February 2000. This instrument provides global coverage and is still operational today; it therefore offers a huge source of data and information on those issues. You will find a general description of the instrument, mission and products here:
In particular, you may want to browse through the large collection of papers dedicated to that issue and archived here:
Look, in particular, for papers dealing with atmospheric pollution in India, if that's your region of interest. If you require access to MISR data, then visit this web site:
Lastly, keep in mind that a successor instrument to MISR, called MAIA, will be launched in 2022 and will be dedicated to monitoring air pollution in cities. You can learn more about this upcoming project here:
I hope this may help you. Best regards, Michel.
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In India, the annual average of 5 ug/m3 for benzene, and there are standards for several other countries. .
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Benzene is the most toxic (carcinogenic) of the VOC. Ethene is plant toxic. Under EU regulations selected VOC have to be monitored on a certain schedule by grab sampling and analysing in the Lab - but no limits are given. The survey is for groups studying tropospheric Ozone formation.
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Hello everyone,
I have been looking for air pollution (CO2, PM10, Ozone, etc) data for the United States by County level for one project, "The Effect of Air Pollution on Housing Prices in the SouthWest of USA".
I have collected data from the EPA website though it contains the number of days and air quality index with the above variables. I would like to use a yearly average of these variables in ktons or metric tons by county level. I have heard that EPA might be managed this type of data. However, I have a very hard time finding from their website.
I can see that EDGAR is collecting the air pollution data from 1970-2015 by Country. I can only get the national-level data for the USA from this website, which does not help me at all.
Could anyone please recommend any website, source to me that I can use for collecting the data?
Thanks in advance,
Samsun
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Thank you so much for your sggestion.
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I am doing econometric modeling for air pollution and some other variables. But don't have the latest data (2000-2020) of air pollutants such as carbon monoxide, PM2.5, PM10, NOx, SO2 and ammonia. Would you recommend any website where I can get?
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Hi Atiq,
Thank you so much for your kind information.
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Which category of particulate matter is most harmful to human health ?
How does air polluted with particulate matter affect human beings ?
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Apoorva... Regarding the size of particles, the smaller the particle size the greater will be the damage the cause to the living bodies. For the chemical composition, the presence of silica and asbestos particles exerts destruction of the respiratory vessels and the whole system damage. An appreciable hazard of the smoke come from the micro particles suspended in it. Good luck
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How can I measure the level of air pollution of a city?
Is there any rapidly applying & easy to administer device/machine to detect air pollutants?
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The connected question will be where to place the sensors in order to be representative for a larger area. Local effects, like nearby roads or in street canyons may affect your measurement. As a general guideline, I would refer to the European directives on air quality, e.g.
I am not sure, if this is the latest version. But in the Annex you'll find guidelines to measurement principles and sampling point locations.
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i have already worked on air pollution and its impact on human health, but the method i used for checking impacts of air pollution on human health was based on questionnaire. now i want to work on laboratory animals for checking impact of air pollution on human health. Can anyone please help me with this or can any one provide me methodology for the same?
Regards
Dr. Parvaiz Ahmad Ratgher
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Hi Parvaiz Rather , In toxicity studies related to human health, aspiration or instillation of foreign material like fluid into the lungs is frequently intentionally applied for drug delivery or other interventional purposes. It has been widely applied in toxicity studies, especially the investigations on the airborne particulate matter.
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There are ground stations located that collect data on air quality but they do not give data in a specific area and sometimes these are far away from areas of interest.. Can we get monthly data ?
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There are live satellite hourly sources of many pollutants (PM1, PM2.5, PM10) provided by GFS / NCEP / US National Weather Service. You can follow the link,
Further, you can check Copernicus Sentinel-5P satellite for NO2 monitoring.
Above all google earth engine can be utilized to obtain the pollutants data for any location.
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I am exploring up-to-date books on air pollution and air quality, and I would like to know which books do you recommend for environmental engineering students.
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It is very difficult to recommend just a single book, instead I would like to share some of the books that were very helpful in my own work with air pollution models in the past:
Atmospheric Chemistry and Physics: From Air Pollution to Climate Change, 3rd Edition
John H. Seinfeld, Spyros N. Pandis
Atmospheric Pollution
History, Science, and Regulation
TEXTBOOK
AUTHOR: Mark Z. Jacobson, Stanford University, California
Numerical Simulation of Reactive Flow
2nd edition
Elaine S. Oran, Naval Research Laboratory, Washington DC, Jay P. Boris, Naval Research Laboratory, Washington DC
Publisher: Cambridge University Press
The structure of atmospheric turbulence. By J. L. Lumley and H. A. Panofsky. New York (Interscience Publishers), 1964. Pp. xi, 239; 73 Figures; 7 Tables.
Aerosol Science: Theory and Practice
Williams, M.M.R.; Loyalka, S.K.
Fundamental Chemical Kinetics: An Explanatory Introduction to the Concepts
M R WrightJun. 1999
Elsevie
Microphysics of Clouds and Precipitation
Authors: Pruppacher, H.R., Klett, J.D
An Introduction to Dynamic Meteorology Hardcover – Illustrated, Aug. 31 2012
by James R. Holton (Author), Gregory J. Hakim (Author)
Numerical Weather Prediction
by George J. Haltiner
Numerical Solution of Time-Dependent Advection-Diffusion-Reaction Equations
Authors: Hundsdorfer, Willem, Verwer, Jan G.
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I am wondering if there is an air quality standard for submicrometric particulate matter (diameter less than or equal to 1 micron).
For now, I know that the World Health Organization (WHO) air quality standards is 25 μg m-3 for daily PM2.5 mass concentration.
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Hello,
I'm an undergraduate student working on transboundary air pollution on Bangladesh. I know how to use HYSPLIT and Trajstat software. Is there any other software that can provide me exact quantitative analysis of how much pollutants may come from long range sources?
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I would like to suggest also the FLEXPART system; the official site with all essential information is
The historical background is provided in many sources including the Wikipedia
I strongly recommend this system based on a well documented list of the case studies of a long range transport of air pollutants.
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Hi there,
I'm currently monitoring air pollution in Grenada, West Indies and as part of my project I have identified four scenarios in which I would like to use a back-trajectory analysis (HYSPLIT) to determine where air parcels at breathing height are sourced from, to get a better understanding of what may be influencing air quality for people living in Grenada.The four scenarios I am interested in are: 1. During a Saharan dust event with COVID-19 government interventions implemented, 2. During a Saharan dust event with no COVID-19 government interventions implemented, 3. Not during a Saharan dust event with COVID-19 government interventions implemented, 4. Not during a Saharan dust event with no COVID-19 government interventions implemented. Is it possible to use HYSPLIT back-trajectories to determine where air parcels at around breathing height are sourced from to determine what is influencing the air quality of this particular location (Grenada) at particular dates and times that satisfy each scenario?
For example, I would expect that during scenarios 1 and 2 that back-trajectories would lead back to the Sahara/Sahel of the African continent, given the proper starting height for the back-trajectory.
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It seems that the COVID-19 has positive effects on plants and air purification.
I have a field observation that reduced emissions from factories reduced soot and dust on plant leaves, thus improving their growth and thus increasing oxygen releases.
I wish you good luck
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Worldwide, Unplanned Industrial Growth is highly responsible for the deterioration of environmental health. With industrial activities, like, burning coal ,burning fossil fuels, unsustainable uses of various chemical solvents, improper disposal of solid, liquid and highly toxic wastes, are threatening environment badly. This Unsustainable practices are contaminating several natural resources , such as, air, water, and soil all over the world. We became familiar with these term,"Global warming climate change, wildlife extinction, biodiversity loss, sea-level rise etc." after the industrial evolution mainly. Development and proper management in industrial sector is keenly needed worldwide to ensure sustainability.
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Dear @Sumathi Malairajan, @karim omar, and @Zinah A. Alshefy,
Thank you for your valuable discussion.
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Air pollution has become a very big problem in Indian cities, especially Delhi. It requires immediate attention and we need to soon understand the trends, provide forecasts for future, issue relevant public advisories and control the primary causes of increasing AQI values.
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I found the data I was looking for. Thank you Michael J. Lynch and Ashraf Khamees
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Dear Colleagues,
We invite authors to submit original and review articles that describe field, experimental, and modelling studies related to detailed analyses of road dust and its various size fractions as a major source of air pollution. Priority attention will be paid to modern techniques, approaches, and methods for assessing the contribution of various sources to the chemical composition of road dust size fractions (source apportionment) and the assessment of public health and ecological risks, as well as other related issues of air pollution by particulate matter, including nanoparticles and microplastics.