| Main Title |
Methods for Estimating On-Site Ambient Air Concentrations at Disposal Sites. |
| Author |
Hwang, S. T. ;
|
| CORP Author |
Environmental Protection Agency, Washington, DC. Office of Health and Environmental Assessment. |
| Year Published |
1987 |
| Report Number |
EPA/600/J-87/109; |
| Stock Number |
PB88-132907 |
| Additional Subjects |
Waste disposal ;
Hazardous wastes ;
Air pollution ;
Dispersions ;
Emission ;
Respiration ;
Toxicity ;
Contamination ;
Normal density functions ;
Estimating ;
Environmental engineering ;
Reprints ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB88-132907 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
7p |
| Abstract |
Currently, Gaussian type dispersion modeling and point source approximation are combined to estimate the ambient air concentrations of pollutants dispersed downwind of an areawide emission source, using the approach of virtual point source approximation. The Gaussian dispersion modeling becomes less accurate as the receptor comes closer to the source, and becomes inapplicable for the estimation of on-site ambient air concentrations at disposal sites. Partial differential equations are solved with appropriate boundary conditions for use in estimating the on-site concentrations in the ambient air impacted by emissions from an area source such as land disposal sites. Two variations of solution techniques are presented, and their predictions are compared. |
| Supplementary Notes |
Pub. in Nuclear and Chemical Waste Management, v7 p95-98 Jun 87. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Methods for Estimating On-Site Ambient Air Concentrations at Disposal Sites. |
| PUB Date Free Form |
23 Feb 87 |
| Category Codes |
68A; 43F; 91A; 99B |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/21 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
805619096 |
| Origin |
NTIS |
| Type |
CAT |
