The science and risk assessment behind EPA's proposed revisions to the particulate matter air quality standards
Subtitle: hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Ninth Congress, second session, July 19, 2006.
Series: S. hrg -- 109-1048
Publisher: U.S. G.P.O.; For sale by the Supt. of Docs., U.S. G.P.O.
Published: 2009
Place of publication: Washington
Language: eng
Number of pages: 205
Subjects: United States. -- Environmental Protection Agency -- Rules and practice; Air quality -- Standards -- United States; Air -- Pollution -- Standards -- United States; Particles -- Environmental aspects -- United States; Health risk assessment -- United States; Environmental risk assessment -- United States
Notes: Shipping list no. unavailable.

Includes bibliographical references.