| Main Title |
Estimating Natural Emissions for EPA's Regional Oxidant Model. |
| Author |
Pierce, T. E. ;
Novak., J. H. ;
|
| CORP Author |
National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Air Resources Lab.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. |
| Publisher |
1991 |
| Year Published |
1991 |
| Report Number |
EPA/600/D-91/286; |
| Stock Number |
PB92-129592 |
| Additional Subjects |
Natural emissions ;
Air pollution sources ;
Photochemical reactions ;
Mathematical models ;
Atmospheric chemistry ;
Study estimates ;
Three-dimensional calculations ;
Nitrogen oxides ;
Concentration(Composition) ;
Non-methane hydrocarbons ;
Vegetation ;
Biomass ;
Regional Oxidant Model ;
Eastern Region(United States)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB92-129592 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
14p |
| Abstract |
The paper documents the methodology used to estimate natural sources of nitrogen oxide (NOx) and nonmethane hydrocarbon (NMHC) emissions in the Regional Oxidant Model (ROM). The ROM is a three-dimensional photochemical grid model designed to simulate hourly concentrations of ozone and related chemical species. The current operational version of the model accepts anthropogenic and natural emissions on a grid cell resolution of 1/6 deg latitude by 1/4 deg longitude (approximately 18.5 km by 18.5 km). Sources that are simulated include NO emissions from lightning and soil microbial activity, and NMHC emissions from vegetation. Estimates made for the eastern United States indicate that biogenic NMHC emissions are larger than anthropogenic NMHC emissions. Natural sources of NO, however, are less than one-tenth the size of anthropogenic NOx emissions. |
