Anything connected to Air pollution

• Parth Sarathi Mahapatra

  Mapping Urban vulnerability to air quality

  I want to determine the urban vulnerability with respect to air quality and changing climate and determine the adaptation strategies at Bhubaneswar, a developing city of Odisha, India. Hence pleaseI want to determine the urban vulnerability with respect to air quality and changing climate and determine the adaptation strategies at Bhubaneswar, a developing city of Odisha, India. Hence please give me some inputs for this and would be highly obliged to you.

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    Juan Carlos Ortega Bravo replied

    You can see the results of this paper, although these authors only used the GAM model, I worked with GAM.EXACT to adjust the same study, since the results should be improved by the amount of yearsYou can see the results of this paper, although these authors only used the GAM model, I worked with GAM.EXACT to adjust the same study, since the results should be improved by the amount of years that had passed and the abance in performance of the methodology (from gam to gam.exact). The results of that study have not yet been published, and the report is available only in Spanish ... I'm sorry paper to read: Sanhueza P.A., Díaz-Robles L.A., Torreblanca M.A., Shiappacasse L.N., Silva M.P., and Astete T.D., “Particulate Air Pollution and Health Effects for Cardiovascular and Respiratory Causes in Temuco City, Chile; A Woodsmoke Polluted Urban Area.”, JAWMA, 59, (12) 1481-1488, 2009.

    5 minutes ago
• Dan Dobrovolschi

  What is turbulent diffusion of an atmospheric pollutant

  How do you define turbulent diffusion of an atmospheric pollutant?
• Sneha Gautam

  How do we simulate the downward and upward movement of air?

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    Gregory M Zarus replied

    Interesting. I do not know if it has been done for mines, but the Folks at Texas Tech might know: http://www.depts.ttu.edu/weweb/ ..commercial leaf blowers (with wheels) are still a good option toInteresting. I do not know if it has been done for mines, but the Folks at Texas Tech might know: http://www.depts.ttu.edu/weweb/ ..commercial leaf blowers (with wheels) are still a good option to produce the wind. Be sure to plan for creating the boundary (laminar or not) flow that you are trying to replicate. I have done so by first measuring UVW at 15 min intervals and used Fourier analysis to determine periodicity/randomness of the flow (for several 15 min segments). Then in the simulated flow-field, I added bluff bodies to create the roughness needed to reproduce the eddies that I measured in the field.

    17 days ago
• Shonam Sharma

  Which method is suitable for ambient air sampling and what are the latest instruments that can be used for this?

  Please advise.

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    Srimuruganandam B replied

    Refer -Wilson et al., Monitoring of particulate matter outdoors.Chemosphere 49 (2002) 1009–1043.

    Mar 30, 2012
• Sweta Sinha

  What is the prescribed methodology for the analysis of Poly Aromatic Hydrocarbons (Benzene & Benzo (a) Pyrene) in Ambient Air?

  Poly Aromatic Hydrocarbons (Benzene & Benzo (a) Pyrene) in Ambient Air Methodology

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    Gregory M Zarus replied

    Sorry Sweta, I just realized that I only answered your BaP question. I know of no method to analyze benzene on PTFE using GC/FID. If I wanted both chemicals, I would use EPA TO17 (GC/MS). Sorry Sweta, I just realized that I only answered your BaP question. I know of no method to analyze benzene on PTFE using GC/FID. If I wanted both chemicals, I would use EPA TO17 (GC/MS). However, if you wanted qualitative detection. If your glass filter paper has coal dust, the coal will collect benzene that can be analyzed with a GC/FID. OSHA method 07 will provide VOCs. Your sample would have had to been kept cool and the analysis would have to be within say 14 days.

    Mar 30, 2012
• Jun He

  Indoor air quality minimization

  Any thoughts of what kind of new area in indoor air quality minimization is quite hot nowadays? thanks for any sharing...

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    Gregory M Zarus replied

    Vapor Intrusion: Ground water contaminants volitilizing and being drawn in through the building envelope. As homes become more insulated and air tight, they increase the pressure differentialVapor Intrusion: Ground water contaminants volitilizing and being drawn in through the building envelope. As homes become more insulated and air tight, they increase the pressure differential between the soil pour spaces and the indoor air. Vapors are drawn in. One solution is soil depressurization beneath the home.

    Mar 22, 2012
• Mitali Sahu

  Coastal Waters Produce Halogenated Organic Molecules That Exacerbate Stratospheric Ozone Depletion. The halogens chlorine, bromine and iodine are known as ozone-depleting substances. Micro-organismsCoastal Waters Produce Halogenated Organic Molecules That Exacerbate Stratospheric Ozone Depletion. The halogens chlorine, bromine and iodine are known as ozone-depleting substances. Micro-organisms such as macro-algae and phytoplankton form natural halogenated organic molecules, which are released into the air, where they eventually find their way into the stratosphere. The SHIVA project is testing conjectures based on earlier findings by scientists from Heidelberg University's Institute of Environmental Physics that the ozone layer may not only be harmed by industrial "ozone killers" like chlorofluorocarbons (CFC), but also by these natural halogenated organic molecules. "Our measurements off the coast of Borneo, in the South China Sea and in the Sulu Sea indicate that the biologically productive coastal waters are particularly abundant sources of these trace gases," says overall coordinator Prof. Dr. Klaus Pfeilsticker of Heidelberg University. Involved in the field measurements were the German research ship "Sonne" and various smaller Malaysian vessels. "In addition, our British and Malaysian colleagues did laboratory analyses which indicate that rhodophyta, or red algae, are one of the prime producers of these halogenated organic molecules, due to a stress reaction triggered by oxygen.
• Kristian Slavov

  "In a study by Yale and Columbia Universities, India holds the very last rank (125th) among 132 nations in terms of air quality with regard to its effect on human health"

  http://www.thehindu.com/sci-tech/energy-and-environment/article2837739.ece
• Steaven Greenwood

  Are there any active teams studing new clean-up technologies?

  Specifically atmospheric decontamination

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    Mohammad Firoz Khan replied

    These promised technology like back-stop and clean-up are simply promises. As, Corporates anticipate them as loss incurring as amount spent on R&D is huge. And, these technologies have no largeThese promised technology like back-stop and clean-up are simply promises. As, Corporates anticipate them as loss incurring as amount spent on R&D is huge. And, these technologies have no large market as developing nation states cannot afford them and developed nations believe in polluting rather than cleaning.

    Dec 8, 2011
• IMRAN AHMED KHAN

  How could we calculate COHb from CO readings?

  CO is a toxic gas. Huge traffic influence on human health. How GIS play for this type of study?

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  • 
    IMRAN AHMED KHAN replied

    Dear scholar, Thank you very much for your useful answer. Regards Imran A khan

    Oct 14, 2011

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