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RECORD NUMBER: 4 OF 6

OLS Field Name OLS Field Data
Main Title Oxidation of Nitrogen: Differences between Measurements and Predictions from the Regional Acid Deposition Model and whether Grid Size Can Explain Them.
Author Dannis, R. L. ; Cohn, R. D. ; Odman, T. ;
CORP Author National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div. ;Analytical Sciences, Inc., Durham, NC. ;MCNC, Research Triangle Park, NC. Information Technologies Div.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher 1993
Year Published 1993
Report Number EPA-68-D0-0095; EPA/600/A-93/277;
Stock Number PB94-122603
Additional Subjects Nitrogen oxides ; Photochemical reactions ; Air pollution ; Atmospheric chemistry ; Mathematical models ; Oxidation ; Regional analysis ; Three-dimensional calculations ; Comparison ; Performance evaluation ; Ozone ; Concentration(Composition) ; Regional Acid Deposition Model ; Eulerian models
Holdings
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NTIS  PB94-122603 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 02/27/1994
Collation 6p
Abstract
The photochemical process responsible for ozone formation is the oxidation of nitrogen oxides (NO and NO2), referred to as NOx, in the presence of nonmethane hydrocarbons. In the process NOx is itself oxidized to more stable products such as HNO3 and peroxyacetyl nitrate (PAN). New measurement capabilities (low concentrations and new species) are allowing us to gain an improved understanding of this nitrogen chemistry in the rural environment. An important element of the evaluation of regional models with regard to photochemistry is a comparison of the resultant species of the NOx oxidation process predicted by the model with the resultant species observed in the 'real world.' The dynamics are inferred from species concentration relationships.