| Main Title |
Urban Aerosol Transformation and Transport Modeling. |
| Author |
Seo, Y. ;
Brock, J. R. ;
|
| CORP Author |
Texas Univ. at Austin. Dept. of Chemical Engineering.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. |
| Publisher |
Feb 90 |
| Year Published |
1990 |
| Report Number |
EPA-R-811946; EPA/600/3-90/017; |
| Stock Number |
PB90-187170 |
| Additional Subjects |
Aerosols ;
Urban areas ;
Mathematical models ;
Air pollution ;
Particle size ;
Photochemical reactions ;
Chemical bonds ;
Kinetics ;
Ammonium ;
Graphs(Charts) ;
Concentration(Composition) ;
Sulfates ;
Inorganic nitrates ;
Atmospheric chemistry ;
AROSOL model
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-187170 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
51p |
| Abstract |
Modules for secondary aerosol formation included in the urban scale K-theory aerosol model, AROSOL are: An empirical first-order SO2 conversion scheme, termed EMM; The lumped parameter kinetic model termed the Carbon Bond Mechanism, in the version CBM-IV; The lumped parameter kinetic model termed the Atkinson Lloyd Mechanism, in the 1985 ERT version; The equilibrium Model for an Aerosol Reacting System (MARS) for prediction of equilibrium partition of nitrates, sulfates, and ammonium between the gas and aerosol phases; The Binary Aerosol Dynamics Model for nucleation and growth of secondary aerosol. The modules for secondary sulfate and nitrate formation have been demonstrated with data from the 1982 Philadelphia Aerosol Field Study. Both EMM and CBM give similar secondary sulfate concentrations. EMM was found to give secondary sulfate concentrations around ten times those with CBM. MARS was used to demonstrate secondary sulfate speciation from the conversions given by CBM. From the CBM calculations, nitrate speciation calculated by MARS was also obtained. |
| Supplementary Notes |
Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. |
| NTIS Title Notes |
Rept. for Oct 85-Oct 88. |
| Category Codes |
68A#; 99E; 99F; 55E; 91A# |
| NTIS Prices |
PC A04/MF A01 |
| Primary Description |
600/09 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
011723129 |
| Origin |
NTIS |
| Type |
CAT |
