Changeset 13267 in main


Ignore:
Timestamp:
03/01/17 10:11:56 (5 years ago)
Author:
Tong Zheng
Message:

pm2.5 set up

File:
1 edited

Legend:

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  • adopters/ut/trunk/src/main/webapps/ibisph-content/xml/query/module/pm2.5/overview/PM2.5.xml

    r13266 r13267  
    66  <TEXT> In addition to these adverse outcomes, PM2.5 can influence the environment in ways that will eventually affect human health. Fine particles cause haze which reduces visibility. The long-term effects of PM2.5, which settles in the soil, natural water sources, forests, and agricultural areas, are still to be determined. </TEXT>
    77 
    8   <TEXT> Whether or not climate change has an effect on PM2.5 concentration has yet to be determined. As temperatures increase, PM2.5 concentration has been shown to increase in the United States, however this is not the general consensus of the scientific community. However, as temperatures increase, PM2.5 concentration has been shown to increase in the United States, but this is not the general consensus of the scientific community. Researchers seem to agree that as precipitation increases, PM2.5 levels will decrease since it "clears" the air^2^. If precipitation events are seen to increase with climate change, it is reasonable to conclude that PM2.5 levels may decrease. PM2.5 concentrations could also be affected by air stagnation events (i.e., inversions). If air stagnation events increase in frequency with climate change, PM2.5 levels are likely to rise because these events trap the pollution at the Earth's surface^2^. More research is needed to accurately quantify to what extent PM2.5 levels will be affected by a changing climate. </TEXT>
     8  <TEXT> Whether or not climate change has an effect on PM2.5 concentration has yet to be determined. As temperatures increase, PM2.5 concentration has been shown to increase in the United States, however this is not the general consensus of the scientific community. The EPA recommends an annual PM2.5 standard of less than 12 micrograms per cubic meter. However, as temperatures increase, PM2.5 concentration has been shown to increase in the United States, but this is not the general consensus of the scientific community. Researchers seem to agree that as precipitation increases, PM2.5 levels will decrease since it "clears" the air^2^. If precipitation events are seen to increase with climate change, it is reasonable to conclude that PM2.5 levels may decrease. PM2.5 concentrations could also be affected by air stagnation events (i.e., inversions). If air stagnation events increase in frequency with climate change, PM2.5 levels are likely to rise because these events trap the pollution at the Earth's surface^2^. More research is needed to accurately quantify to what extent PM2.5 levels will be affected by a changing climate. </TEXT>
    99 
    1010     <TEXT> ''1. Utah Department of Environmental Quality (2011). Choose clean air: particulate matter (PM10 and PM2.5). Retrieved March 19, 2012 from the Division of Air Quality: [http://www.cleanair.utah.gov/pollutants/particulateMatter.htm] '' </TEXT>
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