| Main Title |
Factors Affecting Dry Deposition of SO2 on Forests and Grasslands. |
| Author |
Shreffler, J. H. ;
|
| CORP Author |
Environmental Sciences Research Lab., Research Triangle Park, NC. |
| Year Published |
1977 |
| Report Number |
EPA/600/J-78/117; |
| Stock Number |
PB-298 519 |
| Additional Subjects |
Air pollution ;
Sulfur dioxide ;
Forests ;
Grasslands ;
Atmospheric diffusion ;
Transport properties ;
Vegetation ;
Deposition ;
Reprints
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-298 519 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
9p |
| Abstract |
Deposition velocities for SO2 over forests and grasslands are derived through a mass conservation approach using established empirical relations descriptive of the atmospheric transport of a gaseous contaminant above and within a vegetational canopy. Of particular interest are situations where surface resistance to uptake is relatively small and does not overwhelm atmospheric transport in the determination of deposition. To this end, emphasis is placed on cases assuming the vegetation surface is a perfect sink or has resistance approximating minimum stomatal resistance. |
