U.S. Department of Transportation/Federal Highway Administration

U.S. Department of Transportation/Federal Highway Administration

Office of Planning, Environment, & Realty (HEP)
Planning • Environment • Real Estate

HEP Events Guidance Publications Awards Contacts

Contacts

For more information, please contact Victoria Martinez.

Transportation Air Quality Facts and Figures January 2006

Average Number of Exceedances Per Monitor 1994-2002

Monitor Trends Report

	1994	1995	1996	1997	1998	1999	2000	2001	2002
CO	0.145946	0.134892	0.117857	0.084404	0.10586	0.098696	0.051724	0.103314	0.026423
Ozone	0.390269	0.55334	0.410256	0.403226	0.586977	0.561308	0.322981	0.343271	0.523649
PM10	0.193585	0.281006	0.409827	0.409142	0.274386	0.305256	0.343391	0.393672	0.410217

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Updated: 07/06/2011

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