Science news articles about 'national ambient air quality'

... picture of the likely air quality during the Games. They compared their results against The National Ambient Air Quality Standard. The purpose of their study was to inform measures to improve the air ...

... combustion processes, can reach the smaller airways and air sacs within the lungs. Roger D ... disease and respiratory disease outcomes. “The National Ambient Air Quality Standard (NAAQS) for particulate ...

WASHINGTON, May 2 (UPI) -- The U.S. Environmental Protection Agency Thursday proposed a reduction in the National Ambient Air Quality Standard for lead emissions.

... particulate matter, two of the most prevalent components of air pollution. The study followed nearly 450 ... Protection Agency (EPA) strengthened its National Ambient Air Quality Standards for ground-level ...

... . The U.S. EPA introduced its 1997 National Ambient Air Quality Standards (NAAQS) to educate the public about daily air quality levels, including information about ozone and particulate ...

... of PM2.5 per cubic meter of air in the city's Squirrel Hill/Oakland areas was ... higher than the number of days allowed by the National Ambient Air Quality Standard administered by the Environmental ...

... to researchers at the University of California Davis. "The National Ambient Air Quality Standard (NAAQS) for ozone was ... at 60, 70, 80 or 87 ppb or filtered air while undergoing six 50-minute bouts of ...

... monoxide, even at levels well below national limits, is associated with an increased risk of hospitalization ... million, which is well below the EPA's National Ambient Air Quality Standard of 35 parts ...