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Get used to cleaner air : environmental health

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1001 ‎$0‎MAPA20080007775‎$a‎Ward, Bud
24510‎$a‎Get used to cleaner air‎$b‎: environmental health‎$c‎by Bud Ward
520  ‎$a‎Congress passes tougher standards in sweeping amendments to clean air act. The new amendments call for more stringent standards for autos, trucks and urban buses. This article includes: non-attainment program; mobile sources, clean fuels; air toxics; permitting; enforcement; stratospheric ozone depletion; future impact
61027‎$0‎MAPA20080453589‎$a‎Environmental Protection Agency
65011‎$0‎MAPA20080569556‎$a‎Medio ambiente
65011‎$0‎MAPA20080616441‎$a‎Contaminación atmosférica
65011‎$0‎MAPA20080621186‎$a‎Control de la contaminación
65011‎$0‎MAPA20080625016‎$a‎Sistemas de limpieza del aire
65011‎$0‎MAPA20080541873‎$a‎Normas
65011‎$0‎MAPA20080568863‎$a‎Estados Unidos
7400 ‎$a‎Safety & health
7730 ‎$t‎Safety & health‎$d‎Chicago‎$g‎Vol. 143, nº 2, February 1991 ; p. 36-38