| Main Title |
On-Road Motor Vehicle Emissions including NH3, SO2 and NO2. |
| Author |
D. H. Stedman ;
G. A. Biship ;
A. Peddle
|
| CORP Author |
Denver Univ., CO. Dept. of Chemistry and Biochemistry.; California State Air Resources Board, Sacramento.; California Environmental Protection Agency, Sacramento. |
| Year Published |
2009 |
| Report Number |
CARBRA-07-319 |
| Stock Number |
PB2010-110809 |
| Additional Subjects |
Mobile pollutant sources ;
Motor vehicles ;
Emission ;
Ammonia ;
Nitrogen oxides ;
Sulfur oxides ;
Road transportation ;
Hydrocarbons ;
Air quality ;
Air pollution ;
Measurement ;
Tables(Data) ;
Carbon monoxide ;
Carbon dioxide ;
Diesel fuels ;
Automotive fuels ;
California
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB2010-110809 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
86p |
| Abstract |
The three California cities of San Jose, Fresno and west Los Angeles (LA) were visited during March 2008 to remotely collect on-road emission measurements of carbon monoxide (CO), carbon dioxide, hydrocarbons (HC), nitric oxide (NO), sulfur dioxide, ammonia (NH3) and nitrogen dioxide (NO2) from light-duty vehicles. A database for each site was compiled and contains 24,978 records in San Jose, 13,365 records in Fresno and 17,953 records in LA for which the State of California provided registration information. At the San Jose and LA sites repeat measurements of CO, HC and NO show large fuel specific emission reductions between 1999 and 2008. In Fresno a small fleet of 2007 diesel ambulances was found to have more than 60% of the emitted oxides of nitrogen as NO2. NH3 emissions are again shown to have a strong dependence on model year with NH3 means of 0.49 + 0.02, 0.49 + 0.01 and 0.79 + 0.02 gm/kg of fuel for San Jose, Fresno and LA respectively with the larger in emissions at the LA site likely a result of the more aggressive driving mode. |
| Supplementary Notes |
Sponsored by California State Air Resources Board, Sacramento. and California Environmental Protection Agency, Sacramento. |
| Availability Notes |
Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. |
| PUB Date Free Form |
Oct 2009 |
| Category Codes |
68A; 85H; 97K |
| NTIS Prices |
PC A06/MF A06 |
| Document Type |
NT |
| Medium |
Final rept |
| Cataloging Source |
NTIS/MT |
| Control Number |
128600720 |
| Origin |
NTIS |
| Type |
CAT |
