... for particles in the air is next reviewed.”
The EPA regulates the levels of fine particle pollution, but does not yet have a standard for coarse particle pollution.
Previous studies by the Hopkins ...
... are significant, given recent reports on diminishing air quality and increased unhealthy levels of ozone and particle pollution, especially in countries like China, which could lead to more cases of ...
... Docherty also pointed out that while all types of fine particle pollutants are considered harmful, little is known ... 68 to 90 percent of total organic pollution hanging over the Los Angeles region during ...
Existing regulations may not effectively target a large source of fine, organic particle pollutants that contribute to hazy skies and poor air quality over Los Angeles, according to a study scheduled ...
Existing regulations may not effectively target a large source of fine, organic particle pollutants that contribute to hazy skies and poor air quality over Los Angeles, according to a study scheduled ...
... reveals that air quality regulations may not effectively target a large source of fine, organic particle pollutants that contribute to hazy skies and poor air quality over the Los Angeles region...
... deep into the body's respiratory system. Coarse particles fall between 2.5 and 10 microns ... needed. In many cases, the level of indoor fine particle pollution measured was twice as high as the accepted ...
... maritime shipping's total contribution to air particle pollution based on direct measurements of emissions ... Commercial ships emit both particulate pollution and carbon dioxide. Carbon dioxide from ships ...
... get very unhealthful levels of ozone and fine particle pollutants that produce large numbers of premature ... improve air quality, including requiring pollution control devices like catalytic converters ...
A recent study found very high levels of ultrafine particles in a road tunnel – possibly enough to cause respiratory problems.
... source and component specific differences in toxicity of pollutant particles of a given size, and challenges regulators to consider toxicity as well as mass or size when regulating particle pollution.
... source and component specific differences in toxicity of pollutant particles of a given size, and challenges regulators to consider toxicity as well as mass or size when regulating particle pollution.
... of ozone remained strongly linked to risk of death from respiratory problems, even after fine particle pollution was taken into account.
Not surprisingly, highly populated regions such as the Los ...
