![Air dispersion modeling / Pollution / Atmosphere / Air Pollution Control Act / Clean Air Act / Air quality law / California Air Resources Board / United States Environmental Protection Agency / Air quality / Environment / Earth / Air pollution Air dispersion modeling / Pollution / Atmosphere / Air Pollution Control Act / Clean Air Act / Air quality law / California Air Resources Board / United States Environmental Protection Agency / Air quality / Environment / Earth / Air pollution](https://www.pdfsearch.io/img/6428da1eac230552265019f6401db236.jpg) Date: 2013-01-16 11:28:16Air dispersion modeling Pollution Atmosphere Air Pollution Control Act Clean Air Act Air quality law California Air Resources Board United States Environmental Protection Agency Air quality Environment Earth Air pollution | | HISTORY of Air Pollution Control in Philadelphia 1904 Philadelphia passed an ordinance to regulate emission of smoke from chimneys, stacks, flues or open spaces, providing a color scale for the measurement of the degree Add to Reading ListSource URL: www.phila.govDownload Document from Source Website File Size: 466,32 KBShare Document on Facebook
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