WASHINGTON, July 26 (Reuters) - The U.S. Environmental Agency may tighten existing smog standards, after reviewing a body of research that links the air pollutant to early death, according to an agency draft paper released on Wednesday.
WASHINGTON, July 26 (Reuters) - The U.S. Environmental Agency may tighten existing smog standards, after reviewing a body of research that links the air pollutant to early death, according to an agency draft paper released on Wednesday.