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The Air Quality Index (AQI) (also known as the Air Pollution Index (API) or Pollutant Standard Index (PSI) is a number used by government agencies to characterize the quality of the air at a given location. As the AQI increases, an increasingly large percentage of the population is likely to experience increasingly severe adverse health effects. To compute the AQI requires an air pollutant concentration from a monitor or model. The function used to convert from air pollutant concentration to AQI varies by pollutant, and is different in different countries. Air quality index values are divided into ranges, and each range is assigned a descriptor and a color code. Standardized public health advisories are associated with each AQI range. An agency might also encourage members of the public to take public transportation or work from home when AQI levels are high. Limitations of the AQIMost air contaminants do not have an associated AQI. Many countries monitor ground-level ozone, particulates, sulfur dioxide, carbon monoxide and nitrogen dioxide and calculate air quality indices for these pollutants. Causes of Poor Air QualityThe AQI can worsen (go up) due to lack of dilution of air emissions by fresh air. Stagnant air, often caused by an anticyclone or temperature inversion, or other lack of winds lets air pollution remain in a local area. Indices by locationFrom Wikipedia under the
GNU Free Documentation License  dpi-inc.com 168px x 220px | 13.90kB [source page] JVZ jpg 15 Jun 2004 19 01 34K Residential Fire Pic jpg 16 Jun 2004 16 54 17K air quality photodisk jpg 16 Jun 2004 17 01 14K bottom gif 15 Mar 2008 13 49 46K  publichealth.uga.edu 129px x 200px | 36.30kB [source page] Zeb Burrell 1 jpg 16 Oct 2007 12 05 8 0K air quality jpg 14 Jun 2007 09 37 36K air quality 1 jpg 08 Nov 2007 11 39 36K ashley wells jpg 13 Jun 2007 09 33 10K  springfieldnewssun.com 370px x 350px | 76.40kB [source page] Weed Pollen The Air Quality Index is a measure of five major air pollutants calculated by the Environmental Protection Agency The Clean Air Act regulates ground level ozone carbon monoxide sulfur From Yahoo Image Search: "Air quality index"  solarfeeds.com (Scottadmin) ue, 21 Jul 2009 04:42:20 GM such as the automobile industry, manufacture of machine tools, and hardware designs; . Air Quality. Monitors - utilizing a NASA-developed, advanced analytical technique software package, an . air quality. monitor system was created for ...  hardwareaisle.thisoldhouse.com Deborah Snoonian ue, 14 Jul 2009 14:54:45 GM Indoor . air quality. at home There was a frightening story in today's New York Times that detailed the health problems of families who have moved, unknowingly, into former meth houses. Turns out that traces of the drug lingered in these ...  chinastakes.com admin hu, 31 Jul 2008 14:51:57 GM Beijing is not over its case of the nerves, and to further ensure decent . air quality. during the Games and the Paralympic Games, to be held in mid-September, and deal with possible pollution under adverse weather conditions, the Ministry ... From Google Blog Search: "Air quality index"  news.google.com WIBW TOPEKA, Kansas Topeka resident Fred Sanders has been re-appointed by Senate Democratic Leader Anthony Hensley, D-Topeka, to the Kansas Air Quality ... news.google.com Reuters India In recent years, Hong Kong's image as a financial hub has suffered from poor air quality , with its iconic harbor shrouded in a thick chemical smog at times. ... HK roadside air pollution worsens Business Times (subscription) all 623 news articles » news.google.com KTUU ... (AP) - The smoky skies are clearing a bit in Anchorage and the municipality's health department has canceled an air quality advisory issued on July 8. ... Alert canceled as Anchorage air improves Anchorage Daily News all 6 news articles » From Google News Search: "Air quality index" plz i need to know if this is right or wrong , if wrong what i should do ? Q. FLASH-Limit courier services limited garr102-103 south east road,PATCHWAY, BRISTOL,LONDON,United kingdom email: flash_limit_courier@yahoo .com attention: belal shihadeh parcel registration code: DGL/35468/UK-FLS This is to acknowledge the receipt of your email, at FLASH-Limit courier services limited, our goal and mission is to provide quality logistical solutions which exceed our expectations at a competitive price. Our aim of providing global excellence in transportation is provided by our staff members and worldwide suppliers who are here to serve your requirements through the next century. FLASH-Limit courier services limited is a global air cargo wholesaler and has an exclusive network of international agents… [cont.] Asked by belal s - Fri Apr 11 10:41:40 2008 - - 1 Answers - 0 Comments A. TRUST ME - its a scam i know someone has it and been scam All you have to do is put it on spam and ingore it You can't have fbi do it cause its other country Answered by an'tnobodys - Fri Apr 11 10:47:12 2008 Are you voting YES on Prop 2? Q. This November 4, Californians should vote YES! on Prop 2 a modest measure that stops cruel and inhumane treatment of animals, ending the practice of cramming farm animals into cages so small the animals can't even turn around, lie down or extend their limbs. Voting YES! on Prop 2... Prevents cruelty to animals. It s simply wrong to confine veal calves, breeding pigs, and egg-laying hens in tiny cages barely larger than their bodies. Calves are tethered by the neck and can barely move, pigs in severe confinement bite the metal bars of their crates, and hens get trapped and even impaled in their wire cages. We wouldn t force our pets to live in filthy, cramped cages for their whole lives, and we shouldn t force farm animals to endure… [cont.] Asked by Hilary - Wed Oct 29 12:41:17 2008 - - 6 Answers - 0 Comments What is a good sleeping mat for cold weather camping?
Q. I've done research on the net and I think I'm more confused after having done so. I was leaning toward this one: but after reading the reviews, some people had problems with the construction breaking down and bubbles forming. THEN I was going to go with this one because the people who bought it had fewer complaints. Then I read an article that said closed cell pads were much better for insulation purposes than the open cell pads that I listed above. I also read that a lot of the open cell pads that are "self inflating" don't inflate very well and you have to give them a few breaths. The warm moist air from your lungs freezes inside the pad and damages the inner construction (which may be the source of the problems noted in the… [cont.] Asked by Jim - Sat Dec 13 08:34:32 2008 - - 5 Answers - 0 Comments A. Closed cell is the best way to go for winter use. Anything with air will give you less insulation and can become brittle in extreme cold. I use a Therm-A-Rest ultralight pro all summer, but come winter I revert back to a $10 closed cell pad I bought at Wal-Mart in 1999. I have a US Army issue closed cell pad that is slightly denser, but doesn't seem to offer that much more insulation than the $10 one. Wait...15cm? (!!!) That's like 6 inches thick!!! Are you sure you don't mean 15mm? 6 inches is thicker than house insulation! If you are sleeping on a foam pad THAT thick you should have no problems from ground cold whatsoever. I lived in VT for 6 years and went winter camping all the time using just my cheap little $10 pad. I never had… [cont.] Answered by Willie D - Sun Dec 14 10:53:20 2008 From Yahoo Answer Search: "Air quality index" |
