News tagged with air quality
Research shows some plants can remove indoor pollutants
(PhysOrg.com) -- Some plants have the ability to drastically reduce levels of indoor pollutants, according to new research at the University of Georgia. Researchers showed that certain species can effectively ...
Dec 02, 2009 |
4.8 / 5 (20) |
3
Faux trees convert CO2 to O2
(PhysOrg.com) -- Air is one of the few things that you really cannot do without. At least if you want to continue to live. As the population of the earth gets bigger and bigger and increasing amounts of the ...
Mar 10, 2011 |
4.1 / 5 (18) |
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Obama yields on smog rule in face of GOP demands (Update)
(AP) -- In a dramatic reversal, President Barack Obama on Friday scrubbed a clean-air regulation that aimed to reduce health-threatening smog, yielding to bitterly protesting businesses and congressional ...
Sep 02, 2011 |
3.4 / 5 (12) |
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Study advises Chinese government to change fuel in millions of households
Scientists in China are recommending that the Chinese government consider phasing out the direct burning of traditional chunks of coal in millions of households. It suggests that the government substitute ...
Jun 19, 2009 |
5 / 5 (7) |
5
India's air the worst, says annual study
India has the worst air quality in the world, poorer even than its neighbour China, according to an annual survey based at Yale and Columbia universities in the United States.
Feb 02, 2012 |
5 / 5 (7) |
5
Beijing air pollution off the charts, US says
Thick smog blanketing Beijing went "beyond" measurable pollution levels on Monday, the US embassy said, as a Chinese official warned people to stay indoors and avoid outdoor activities.
Feb 21, 2011 |
3.7 / 5 (9) |
9
Common plants can eliminate indoor air pollutants
Air quality in homes, offices, and other indoor spaces is becoming a major health concern, particularly in developed countries where people often spend more than 90% of their time indoors. Surprisingly, indoor ...
Nov 04, 2009 |
4.3 / 5 (7) |
1
China's pollution data shrouded in official fog
(AP) -- Armed with a device that looks like an old transistor radio, some Beijing residents are recording pollution levels and posting them online. It's an act that borders on subversion.
Dec 08, 2011 |
5 / 5 (6) |
1
New approach to emissions makes climate and air quality models more accurate, major study finds
It's no secret that the emissions leaving a car tailpipe or factory smokestack affect climate and air quality. Even trees release chemicals that influence the atmosphere. But until now, scientists have struggled to know where ...
Space & Earth / Earth Sciences
Dec 10, 2009 |
3.9 / 5 (7) |
1
Wildfires set to increase 50 percent by 2050
The area of forest burnt by wildfires in the United States is set to increase by over 50% by 2050, according to research by climate scientists.
Space & Earth / Earth Sciences
Jul 28, 2009 |
2.8 / 5 (9) |
2
China says air pollution worsening
China's air pollution increased this year for the first time since 2005, the environmental protection ministry has said, due to sandstorms, a rise in construction and industrial projects, and more cars.
Jul 27, 2010 |
5 / 5 (5) |
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Record air pollution hammers Calif's ag heartland
(AP) -- This is the time of year when residents who often live with the nation's worst pollution often can draw a breath of fresh air. But this winter has not been kind to people who want to play outside ...
Jan 08, 2012 |
5 / 5 (5) |
0
China sets pace for smoggy Hong Kong: think-tank
Beijing's decision to come clean on its dirty air has embarrassed Hong Kong, where smog kills hundreds of people a year, hurts business and drives away talent, a think-tank has said.
Jan 15, 2012 |
4.4 / 5 (5) |
1
Delhi air quality regulations improve respiratory health
Recent radical changes in air quality regulations in Delhi, India, have had a substantial positive effect on the health of city residents, according to new research co-authored by Andrew Foster, professor ...
Apr 11, 2011 |
5 / 5 (4) |
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'Off the scale' smog grounds flights in Beijing
More than 150 flights to and from Beijing were cancelled or delayed on Tuesday as a thick cloud of acrid smog shrouded the city, with US figures saying the pollution was so bad it was off the scale.
Jan 10, 2012 |
5 / 5 (4) |
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Air Quality Index
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 assiged 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.
For more information about Air Quality Index, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
