Record Display for the EPA National Library Catalog


Main Title Air quality modeling technical support document : heavy-duty vehicle greenhouse gas emission standards final rule.
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards.
Publisher U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Air Quality Assesment Division,
Year Published 2011
Report Number EPA-454-R-11-004
Stock Number PB2011-113229
OCLC Number 768486844
Subjects Air quality--Standards--United States ; Air--Pollution--United States--Mathematical models ; Greenhouse gases--Environmental aspects--United States
Additional Subjects Air quality standards ; Motor vehicles ; Greenhouse gases ; Emission ; Modeling ; Air pollution control ; Nitrogen ; Sulfur ; Ethanol ; Particulates ; Ozone ; Air toxics ; Fuel economy ; Benefits ; Standards ; Regulations ; Documents
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EKBD  EPA-454/R-11-004 Research Triangle Park Library/RTP, NC 12/19/2011
NTIS  PB2011-113229 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation ii, 26, [118] p. : col. ill., maps, charts ; 28cm.
This document describes the air quality modeling performed by EPA in support of the Heavy-Duty Vehicle Greenhouse Gas Final Rule (hereafter referred to as HDGHG). A national scale air quality modeling analysis was performed to estimate the impact of the vehicle standards on future year: annual and 24-hour PM2.5 concentrations, daily maximum 8-hour ozone concentrations, annual nitrogen and sulfur deposition levels, and select annual and seasonal air toxic concentrations (formaldehyde, acetaldehyde, benzene, 1,3-butadiene and acrolein) as well as visibility impairment. To model the air quality benefits of this rule we used the Community Multiscale Air Quality (CMAQ) model.1 CMAQ simulates the numerous physical and chemical processes involved in the formation, transport, and destruction of ozone, particulate matter and air toxics. In addition to the CMAQ model, the modeling platform includes the emissions, meteorology, and initial and boundary condition data which are inputs to this model.
"July 2011". Project Officer: Sharon Phillips. "EPA-454/R-11-004". Includes bibliographical references.