Air Quality Act of 1967: Hearings, Ninetieth Congress, First Session, on H.R. 9509 [and] S. 780 |
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abatement acid action air pollution control air pollution problems Air Quality Act air quality control air quality criteria air quality goals air quality standards airshed ambient air quality atmosphere authority automobile average carbon monoxide carboxyhemoglobin cause Chairman Chicago Clean Air Act coal Commission committee concentrations Congress control programs cost County damage DINGELL disease economic effects of air emission control emission standards emphysema enforcement establish exposure Federal Government fluorides fuel hay fever HEW Criteria hydrocarbons hydrogen sulfide increased industry JULSON KUYKENDALL legislation levels Louis measured ment metropolitan area MIDDLETON million motor vehicle nitrogen dioxide odor oxides particulate matter percent photochemical smog plants pollution control agencies present question regional air quality respiratory result sampling section 107 Senate bill SKUBITZ smog sources SPRINGER statement STEWART Study area sulfate sulfur dioxide suspended particulate Thank tion urban visibility Welfare WILKENFELD York