| Main Title |
Hazardous Air Pollutants: Wet Removal Rates and Mechanisms. |
| Author |
Dana, M. T. ;
Lee, R. N. ;
Hales, J. M. ;
|
| CORP Author |
Battelle Pacific Northwest Labs., Richland, WA.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab. |
| Year Published |
1984 |
| Report Number |
EPA/600/3-84/113; |
| Stock Number |
PB85-138626 |
| Additional Subjects |
Hazardous materials ;
Air pollution ;
Reaction kinetics ;
Organic compounds ;
Solubility ;
Concentration(Composition) ;
Sources ;
Field tests ;
Chloromethanes ;
Chemical reaction mechanisms ;
Ethane/trichloro ;
Wet deposition ;
Multi-Pollutant Atmospheric Deposition and Depletion model ;
Benzene/nitro ;
Methane/chloro
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB85-138626 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
106p |
| Abstract |
Fourteen hazardous organic air pollutants were evaluated for their potentials to be wet deposited by precipitation scavenging. This effort included a survey of solubilities (Henry's Law constants) in the literature, measurement of solubilities of three selected species, development and documentation of a general deposition model (MPADD) which includes dry deposition and plume depletion, and performance of scavenging field experiments to provide a data base for testing the model. Solubility parameters (dimensionless ratio of aqueous concentration to air concentration) for ethylene oxide, nitrobenzene, and methyl chloroform were measured in rainwater at two temperatures each Four field experiments were conducted: three using nitrobenzene and one involving methyl chloroform. Agreement of measured concentrations with model-calculated values was good for nitrobenzene, despite larger than desired experimental uncertainties during two of the releases. Analytical difficulties resulted in only a few measurements of methyl chloroform rainwater concentrations; these however, were in general agreement with model calculations and expectations on the basis of its much lower solubility than that of nitrobenzene. These results and sample test runs of the Multi-Pollutant Atmospheric Deposition and Depletion (MPADD) model, including dry deposition estimates, show that wet deposition should have little effect on plumes of non-reactive hazardous gases within kilometers of their sources. |
| NTIS Title Notes |
Final rept.. |
| PUB Date Free Form |
Dec 84 |
| Category Codes |
7D; 68A; 99F |
| NTIS Prices |
PC A06/MF A01 |
| Primary Description |
600/09 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
507412364 |
| Origin |
NTIS |
| Type |
CAT |
