| Main Title |
Uses, limitations and technical basis of procedures for quantifying relationships between photochemical oxidants and precursors. |
| CORP Author |
United States. Environmental Protection Agency. Monitoring and Data Analysis Division. |
| Publisher |
U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards [Monitoring and Data Analysis Division] ; Available from National Technical Information Service, |
| Year Published |
1977 |
| Report Number |
EPA 450/2-77-021a |
| Stock Number |
PB-278 142 |
| OCLC Number |
04298116 |
| Subjects |
Air--Pollution--Analysis ;
Photochemistry--Research ;
Ozone
|
| Additional Subjects |
Air pollution control ;
Ozone ;
Oxidizers ;
Nitrogen oxides ;
Hydrocarbons ;
Concentration(Composition) ;
Atmospheric models ;
Atmospheric diffusion ;
Reaction kinetics ;
Photochemistry ;
Nomographs ;
Wind(Meteorology) ;
Urban areas
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EHAM |
TD890.U55 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
| EKBD |
EPA-450/2-77-021a |
|
Research Triangle Park Library/RTP, NC |
07/27/2001 |
| ELBD ARCHIVE |
EPA 450-2-77-021a |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ERAD |
EPA 450/2-77-021a |
|
Region 9 Library/San Francisco,CA |
01/23/2013 |
| ESAD |
EPA 450-2-77-021A |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-278 142 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
105 pages in various pagings : illustrations ; 28 cm. |
| Abstract |
Approaches for relating ozone to non-methane hydrocarbon and oxides of nitrogen controls are discussed. All procedures are only applicable in addressing the oxidant problem in urban areas. Available procedures include use of Eulerian and Lagrangian photochemical dispersion models, a new approach called the Empirical Kinetic Modeling Approach (EKMA), proportional rollback and statistical approaches. EKMA, rollback and statistical models are most useful in estimating the degree of reduction needed to attain the National Ambient Air Quality Standard (NAAQS) for oxidant and for estimating reduction in maximum hourly ozone concentration accompanying specified levels of precursor controls. Models are useful for these purposes as well as others. The issue of long range transport of ozone/precursors is discussed. It is concluded that ozone transported above the surface-based nocturnal inversion layer is likely to be the facet of transport exhibiting the greatest impact on maximum ozone levels in urban areas. Procedures for integrating transport considerations into the previously mentioned analytical approaches are discussed. |
| Notes |
Includes bibliographical references. |
| Place Published |
Research Triangle Park, N.C. Springfield, Va. |
| Corp Au Ser Add Ent |
United Sates. Environmental Protection Agency. Publication ; no. EPA-450/2-77-021a. |
| PUB Date Free Form |
1977 |
| Series Title Untraced |
Publication ; no. EPA-450/2-77-021a |
| NTIS Prices |
PC A06/MF A01 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20160418155833 |
| Language |
eng |
| Origin |
OCLC |
| Type |
CAT |
| OCLC Rec Leader |
01541cam 2200337Ii 45020 |
