Main Title |
Air Pollution Effects on Aquatic Ecosystems: Summary of a Symposium. |
Author |
Elias, R. W. ;
Inge, T. B. ;
Von Ward, P. ;
|
CORP Author |
Environmental Protection Agency, Research Triangle Park, NC. Environmental Criteria and Assessment Office. ;Delphi Research Associates, Washington, DC. |
Year Published |
1984 |
Report Number |
EPA-600/9-84-010; |
Stock Number |
PB84-185214 |
Additional Subjects |
Ecology ;
Air pollution ;
Aquatic biology ;
Acidity ;
Meetings ;
Gases ;
Inorganic sulfates ;
Deposition ;
Radioactive isotopes ;
Sediments ;
Sampling ;
pH ;
Fishes ;
Amphibia ;
Fresh water biology ;
Metals ;
Air pollution effects(Animals) ;
Ecosystems ;
Acid precipitation
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB84-185214 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
53p |
Abstract |
Summarizing presentations at a symposium on air pollutant effects on aquatic ecosystems, this document includes an overview of U.S. research programs, atmospheric emissions and deposition, cycling processes, and effects on plants and animals. Current U.S. research addresses ecosystem classification and inventory by sensitivity to acidity, interactions between watershed terrestrial and aquatic ecosystems, and effects. Atmospheric input to aquatic ecosystems may be gaseous or particulate and by wet and dry deposition. Particle dry deposition is most predictable; gaseous dry deposition models exist but are not yet reliable for regional scale. Linear correlation may exist between air sulfate content and deposition acidity. Source apportionment has been used to relate deposition to emission sources. Radioactive isotope studies of cycling processes within aquatic ecosystems have shown that particulate metals are usually removed from the aqueous phase by sedimentation rather than with outflowing water. A chronological record of atmospheric inputs to aquatic ecosystems may be found in carefully taken sediment samples. |
Supplementary Notes |
Prepared in cooperation with Delphi Research Associates, Washington, DC. |
NTIS Title Notes |
Final rept.. |
PUB Date Free Form |
Apr 84 |
Category Codes |
6C; 6F; 68D; 57H#; 68A#; 57C |
NTIS Prices |
PC A04/MF A01 |
Primary Description |
600/21 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
420219873 |
Origin |
NTIS |
Type |
CAT |