Main Title |
CMAQ Modeling for Air Toxics at Fine Scales: A Prototype Study. |
Author |
Majeed, M. A. ;
Ching, J. ;
Otte, T. ;
Reynolds, L. ;
Tang, R. ;
|
CORP Author |
National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div. ;Delaware State Dept. of Natural Resources and Environmental Control, Dover. |
Publisher |
2004 |
Year Published |
2004 |
Report Number |
EPA/600/A-04/101 ;NERL RTP-AMD-04-073; |
Stock Number |
PB2005-100836 |
Additional Subjects |
Air pollution monitoring ;
Toxic substances ;
Particulates ;
Photochemistry ;
Urban areas ;
Emissions ;
Cencentration ;
Human exposure ;
Models ;
Risk assessment ;
Accuracy ;
Meteorology ;
Exposure assessments ;
Temporal variations ;
Spatial variations ;
Community Multiscale Air Quality ;
Toxic air pollutants ;
Chemical transport models
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB2005-100836 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
one CD-ROM contains 4 page document |
Abstract |
Toxic Air Pollutants (TAPs) exhibit considerable spatial and temporal variability across urban areas. Therefore, the ability of chemical transport models (CTMs), e.g., Community Multi-scale Air Quality (CMAQ), to reproduce the spatial and temporal variability is needed to perform accurate exposure assessments and to be able to identify and characterize toxic hot spots, which are the areas that experience high levels of air toxics (AT). These areas are not only impacted by local sources but also by the secondary production of many air toxics compounds due to photochemistry and long range transport. For example, formaldehyde and acetaldehyde have secondary components of oxidant photochemistry. The source distribution, photochemistry, dry and wet deposition of these compounds are scale dependent. Therefore, in order to capture the spatial and temporal variability of these compounds and identify air toxic hot spots, it is necessary to perform air quality simulations at fine scales. |
Supplementary Notes |
This document is color dependent and/or in landscape layout. It is currently available on CD-ROM and paper only. CD-ROM contains a 4 page document. Prepared in cooperation with Delaware State Dept. of Natural Resources and Environmental Control, Dover. |
Availability Notes |
Available on CD-ROM or in paper copy. 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 5285 Port Royal Road, Springfield, VA, 22161, USA. |
Category Codes |
68A; 62B; 91A |
NTIS Prices |
AV$25.00 |
Primary Description |
600/09 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
001800720 |
Origin |
NTIS |
Type |
CAT |