Main Title |
Semi-Empirical Mass Balance Approach for Estimating Primary Emissions of Reactive Species from an Urban-Industrial Complex. |
Author |
Ching, J. S. ;
Gillani, N. V. ;
White, W. H. ;
|
CORP Author |
Washington Univ., St. Louis, MO. Dept. of Mechanical Engineering.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab. |
Year Published |
1987 |
Report Number |
EPA-68-02-4449; EPA/600/D-87/257; |
Stock Number |
PB88-103866 |
Additional Subjects |
Air pollution ;
Urban areas ;
Atmospheric circulation ;
Mathematical models ;
Nitrogen oxides ;
Exhaust emissions ;
Plumes ;
Measurement ;
Estimates ;
Sampling ;
Volatility ;
Organic compounds ;
Mass balance method
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB88-103866 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
24p |
Abstract |
A semi-empirical mass balance method for indirect estimation of urban NOx, and Volatile organic compounds emissions are described. It requires measurement of ambient concentrations of these precursors at urban inflow and outflow boundaries and of the local wind field. In the mass balance, the effect of chemical transformations and removal of the mass balance species (primary as well as secondary) is estimated by means of a crosswind-resolved reactive plume model. As part of an on-going EPA-sponsored project, the method will be applied to existing field data of four eastern U.S. urban areas. The existing data bases were not developed for the present purpose, and are much less than ideal. The outline of a design field study specifically aimed at the current objectives is also described. |