By Joel M. Schwartz, Steven F. Hayward
This ebook records how a lot U.S. air caliber has greater in fresh a long time and offers by way of a long way the main exact photo to be had of continuous pollution difficulties and the way to deal with them.
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Additional info for Air Quality in America: A Dose of Reality on Air Pollution Levels, Trends, and Health Risks
S. Environmental Protection Agency, Inhalable Particulate Network Report: Operation and Data Summary (Mass Concentrations Only), Volume I, April 1979–December 1982, by D. O. Hinton, J. M. Sune, J. C. Suggs, and W. F. S. Environmental Protection Agency, Inhalable Particulate Network Report: Data Summary (Mass Concentrations Only), Volume III, January 1983–December 1984, by D. O. Hinton, J. M. Sune, J. C. Suggs, and W. F. : Government Printing Office, April 1986). S. html (accessed March 21, 2007).
Similarly, Americans began reducing other forms of air pollution years before the 1970 adoption of the Clean Air Act and the creation of EPA. S. CITIES Tons per Square Mile per Month 200 NEW YORK 150 PITTSBURGH 100 CHICAGO 50 DETROIT PHIL. CINCINNATI 0 1925 1930 1935 1940 1945 1950 1955 1960 1965 Year SOURCE: J. H. Ludwig, G. B. Morgan, and T. B. McMullen, “Trends in Urban Air Quality,” EOS 51 (1970): 468–75. NOTES: PM is measured here as dustfall—the amount of particulate matter falling on a given area over a given amount of time, measured in tons per square mile per month.
5 levels in each state. The diamond marks the average level for all monitors in a given state, and the vertical line marks the range from worst to best monitoring site. html (accessed September 29, 2006). NOTES: The horizontal line marks the 15 µg/m3 federal standard. 5 readings for 2003–5 at each site and then calculating the average and range of these values for each state. 5 standard. The average location complies with the standard in nearly all states, and most violating sites are relatively close to the standard.
Air Quality in America: A Dose of Reality on Air Pollution Levels, Trends, and Health Risks by Joel M. Schwartz, Steven F. Hayward