| Main Title |
Downcore Variation in Sediment Organic Nitrogen (Journal Version). |
| Author |
Fisher, John Berton ;
Matisoff, Gerald ;
Lick, W. J. ;
|
| CORP Author |
Case Western Reserve Univ., Cleveland, OH.;Environmental Research Lab., Duluth, MN. |
| Year Published |
1982 |
| Report Number |
EPA-R-8057160; EPA-600/J-82-361; |
| Stock Number |
PB83-243576 |
| Additional Subjects |
Nutrients ;
Sediments ;
Metals ;
Water pollution ;
Nitrogen organic compounds ;
Decomposition ;
Microorganisms ;
Concentration(Composition) ;
Chemical reactions ;
Mathematical models ;
Lake Erie ;
Reprints ;
Organic loading ;
Particulates ;
Sediment water interfaces
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB83-243576 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
4p |
| Abstract |
An historical record of natural (pre-cultural) and anthropogenic (influenced by man's activities) chemical inputs to the environment is contained in accumulating sediment deposits and is commonly expressed as a depositional flux. This flux is traditionally calculated as the product of the sediment accumulation rate and the concentration of a substance in the sediment. Previous work has quantified depositional fluxes of metals and nutrients by assuming that the vertical distribution of these substances in sediments is unaffected by post-depositional migration, chemical reaction or porosity variations. The authors present here a procedure for calculating the historical depositional flux (loading record) of a substance which undergoes post-depositional chemical reaction in a compacting sediment column. The method is demonstrated by calculating the loading record of organic nitrogen at one locality in Lake Erie. (Copyright (c) Macmillan Journals Ltd., 1982.) |
| Availability Notes |
Pub. in Nature 296(5855) p345-347 1982. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Downcore Variation in Sediment Organic Nitrogen (Journal Version). |
| PUB Date Free Form |
c1982 |
| Category Codes |
8H; 68D; 48G |
| NTIS Prices |
Not available NTIS |
| Primary Description |
600/03 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
332921771 |
| Origin |
NTIS |
| Type |
CAT |
