Smog and soot: updating air quality standards.
Browner
C M
CM
Environmental Protection Agency, Washington DC 20460, USA.
D000328:Adult; D000393:Air Pollutants / Q000592:standards*; D000397:Air Pollution / Q000331:legislation & jurisprudence*; D002648:Child; D006801:Humans; D011634:Public Health / Q000639:trends; D012905:Smog; D014481:United States; D014484:United States Environmental Protection Agency
D000393:Air Pollutants; D012905:Smog