Science Inventory

Speciation Profiles and Toxic Emission Factors for Nonroad Engines: DRAFT REPORT

Citation:

Speciation Profiles and Toxic Emission Factors for Nonroad Engines: DRAFT REPORT . U.S. Environmental Protection Agency, Washington, D.C.

Impact/Purpose:

Air pollution inventory modelers have traditionally estimated emissions from nonroad, or non-highway, engines and equipment by using EPA’s NONROAD model. With the release of MOVES2014, users are able to model emissions from both onroad highway vehicles and nonroad engines and equipment within the same interface. However, MOVES2014 did not estimate emissions of nonroad toxics or speciated hydrocarbons. This capability will be added to the MOVES2014a model. This document details the research and development behind how MOVES2014a estimates air toxic emissions for nonroad engines and equipment run on conventional gasoline without ethanol (E0) and gasoline blended with 10% ethanol (E10) as well as diesel fuel, compressed natural gas (CNG), and liquified petroleum gas (LPG). It describes the data used to generate speciation profiles and emission rates for toxic compounds emitted from nonroad engines and equipment in the MOVES2014a database and model. For diesel engines, air toxics may also be differentiated by large and small engine horsepower classifications.

Description:

This document details the research and development behind how MOVES2014a estimates air toxic emissions for nonroad engines and equipment run on conventional gasoline without ethanol (E0) and gasoline blended with 10% ethanol (E10) as well as diesel fuel, compressed natural gas (CNG), and liquified petroleum gas (LPG). It describes the data used to generate speciation profiles and emission rates for toxic compounds emitted from nonroad engines and equipment in the MOVES2014a database and model.

URLs/Downloads:

Charge Letter for Peer Review of March 2015 Speciation Profiles and Toxic Emission Factors for Nonroad Engines Report   (PDF,NA pp, 927 KB,  about PDF)

Charge Letter for Peer Review of March 2015 Speciation Profiles and Toxic Emission Factors for Nonroad Engines Draft Report   (PDF,NA pp, 892 KB,  about PDF)

Speciation Profiles and Toxic Emission Factors for Nonroad Engines (EPA-420-R-15-019)   (PDF,NA pp, 1652 KB,  about PDF)

MOVES (Motor Vehicle Emission Simulator) Reports

Peer Review Report of March 2015 Speciation Profiles and Toxic Emission Factors for Nonroad Engines Report   (PDF,NA pp, 927 KB,  about PDF)

Draft Report Speciation Profiles and Toxic Emission Factors for Nonroad Engines (EPA-420-R-14-028)   (PDF,NA pp, 994 KB,  about PDF)

EPA Response to Peer Reviewer Comments from Dr. T.H. DeFries on Speciation Profiles and Toxic Emission Factors for Nonroad Engines   (PDF,NA pp, 93 KB,  about PDF)

Peer Reviewer Comments from Dr. T.H. DeFries on Speciation Profiles and Toxic Emission Factors for Nonroad Engines   (PDF,NA pp, 52 KB,  about PDF)

Peer Reviewer Comments from Dr. Tom Durbin on Speciation Profiles and Toxic Emission Factors for Nonroad Engines   (PDF,NA pp, 92 KB,  about PDF)

Record Details:

Record Type: DOCUMENT (PUBLISHED REPORT/REPORT)
Product Published Date: 11/01/2015
Record Last Revised: 03/08/2016
OMB Category: Other
Record ID: 309339

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF AIR AND RADIATION

OFFICE OF TRANSPORTATION AND AIR QUALITY

ASSESSMENT AND STANDARDS DIVISION

AIR TOXICS CENTER GROUP