The science and risk assessment behind EPA's proposed revisions to the particulate matter air quality standards : hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Ninth Congress, second session, July 19, 2006.
|Corporate Author:||United States.|
Washington : U.S. G.P.O. : 2009.
> Environmental Protection Agency
> Rules and practice.
Environmental risk assessment > United States.
Health risk assessment > United States.
Particles > Environmental aspects > United States.
Air > Pollution > Standards > United States.
Air quality > Standards > United States.
Shipping list no.: 2009-0371-P.
Also available via the Internet from the GPO Access web site. Address as of 9/9/09: http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=109%5F senate%5Fhearings&docid=f:47635.pdf ; current access is available via PURL.
iv, 205 p. :
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