EPA Science Inventory

DIESEL ENGINE RETROFIT TECHNOLOGY VERIFICATION

Citation:

HARTZELL, E. DIESEL ENGINE RETROFIT TECHNOLOGY VERIFICATION. Presented at EPA Science Forum 2005, Washington, DC, May 16 - 18, 2005.

Description:

This presentation wil be given at the EPA Science Forum 2005 in Washington, DC. According to recent estimates, there are approximately 7.9 million heavy-duty diesel trucks and buses in use in the United States. Emissions from these vehicles account for substantial portions of the country's amient particulate matter (PM) and nitrogen oxide (NOx) levels and have contributed to the non-attainment of National Ambient Air Quality Standards (NAAQSs) in several areas of the country. These pollutants are also contribute to serious public health and environmental problems, including premature mortality and reduced visibility. During ETV testing, emission reductions for six of the seven technoliges ranged from 21% to 95% for PM, 37% to 100% for hydrocarbon and 12% to 87% for carbon monoxide, relative to the performance of the same baseline engines without the technologies in place. No emission reductions were observed for the seventh technology.

URLs/Downloads:

Record Details:

Record Type: DOCUMENT (PRESENTATION/ABSTRACT)
Start Date: 05/18/2005
Completion Date: 05/18/2005
Record Last Revised: 06/21/2006
Record Created: 05/13/2005
Record Released: 05/13/2005
Record ID: 132947

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL RISK MANAGEMENT RESEARCH LABORATORY

IMMEDIATE OFFICE