Skip to content U.S. Department of Transportation/Federal Highway AdministrationU.S. Department of Transportation/Federal Highway Administration
Office of Planning, Environment, & Realty (HEP)

Recent Examinations of Mobile Source Air Toxics

Figuere 2 Data

Variability of MOBILE6.2 Emission Factors for the Priority MSATs
  High Low
Acetaldehyde 0.02376153 0.0013314
Acrolein 0.00365275 0.0001646
Benzene 0.4215294 0.0101655
Butadiene 0.02489667 0.0013124
Diesel PM 0.02851165 0.0020703
Formaldehyde 0.06651337 0.0037095


Updated: 7/6/2011
HEP Home Planning Environment Real Estate
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000

All Federal Highway Administration (FHWA) information technology systems will be unavailable, Friday, October 28, at 10:00 p.m. to Sunday, October 30, at 11:59 p.m., EDT, while work is being performed on the network. During that time, users will not be able to access any FHWA systems.

If you have any questions or problems, please contact the 5-Help Service Center @ (866) 466-5221 or