| Main Title |
The effects of ultra-low sulfur gasoline on emissions from tier 2 vehicles in the in-use fleet : final report / |
| CORP Author |
Environmental Protection Agency, Washington, DC. Office of Transportation and Air Quality. |
| Publisher |
U.S. Environmental Protection Agency, Office of Transportation and Air Quality, Assessment and Standards Division, |
| Year Published |
2014 |
| Report Number |
EPA-420-R-14-002 |
| Stock Number |
PB2014-108187 |
| OCLC Number |
892640943 |
| Subjects |
Sulfur ;
Petroleum--Sulfur content ;
Automobiles--Motors--Exhaust gas
|
| Additional Subjects |
Sulfur ;
Gasoline ;
Exhaust emissions ;
Air pollution control ;
Vehicles ;
Catalysts ;
Diesel fuels ;
Environmental effects ;
Fuel consumption ;
Implementation ;
Nitrogen oxides ;
Pollutants
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ELCD |
EPA 420-R-14-002 |
PDF file on file |
NVFEL Library/Ann Arbor, MI |
10/14/2014 |
| NTIS |
PB2014-108187 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
1 online resource (64 pages) : color illustrations |
| Abstract |
Fuel sulfur content has long been understood to affect the performance of emission aftertreatment catalysts in light duty vehicles, where the sulfur and its oxides occupy active precious metal sites and oxygen storage materials, reducing the catalysts efficiency in destroying pollutants. Numerous studies have shown the direct impact of fuel sulfur levels above 30 ppm on emissions, data that formed the basis of the sulfur controls in EPA's Tier 2 rulemaking for light duty vehicle emissions, published in 2000. Following the successful implementation of the Tier 2 sulfur standards, new research has focused on the emission reduction potential of lowering sulfur levels below 30 ppm, particularly on Tier 2 and newer technology vehicles, under the hypothesis that increased reliance on the catalytic convertor will result in a higher sensitivity to fuel sulfur content. A 2005 study conducted jointly by EPA and several automakers found large decreases in NOx and HC emissions from vehicles meeting Tier 2 Bin 5 emission levels when operating on 6 ppm versus 32 ppm sulfur test fuel. In order to gain further understanding of how these emission reductions would translate into the in-use fleet, EPA conducted the study described here to assess the state of sulfur loading (poisoning) in typical in-use vehicles, as well as the effect of fuel sulfur level on these vehicles during subsequent mileage accumulation. |
| Notes |
Title from PDF title page (viewed on October 9, 2014). "March 2014." "EPA-420-R-14-002." Includes appendices A-F. Includes bibliographical references (pages 62-64). |
| Contents Notes |
Final report -- appendix A. Details of on-road mileage accumulation route -- appendix B. Emission concentration plots -- appendix C. Additional information on emission measurements -- appendix D. Discussion of univariate and multivariate analysis of variance -- appendix E. Plots of all pollutants and bags -- appendix F. Sensitivity analysis of influential vehicles. |
| Place Published |
Washington, DC |
| 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. |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division, |
| PUB Date Free Form |
Mar 2014 |
| Category Codes |
68A; 97K; 85H |
| NTIS Prices |
PC A05 |
| BIB Level |
m |
| Medium |
computer |
| Content |
text |
| Carrier |
online resource |
| Cataloging Source |
RDA |
| Control Number |
129401560 |
| OCLC Time Stamp |
20141009133357 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01894nam 2200349Ki 45020 |
