Main Title |
The impact of inorganic phosphates in the environment : final report / |
Author |
Welch, Justine.
|
CORP Author |
United States. Environmental Protection Agency. Office of Toxic Substances.; Environmental Protection Agency, Washington, DC. Office of Toxic Substances. |
Publisher |
Environmental Protection Agency, Office of Toxic Substances, |
Year Published |
1978 |
Report Number |
EPA 560-1-78-003 |
Stock Number |
PB-291 332 |
OCLC Number |
04648184 |
Subjects |
Phosphorus ;
Eutrophication
|
Additional Subjects |
Phosphates--Environmental aspects ;
Eutrophication ;
Phosphorus ;
Environmental impacts ;
Water pollution ;
Reviews ;
Aquatic plants ;
Dissolved gases ;
Oxygen ;
Concentration(Composition) ;
Fishes ;
Algae ;
Mortality ;
Humans ;
Sewage treatment ;
Recreation ;
Esthetics ;
Cost analysis ;
Estuaries ;
Inorganic phosphates ;
Economic impact ;
Air pollution effects(Animals) ;
Commercial fishing ;
Sport fishing ;
Trophic level ;
Organic loading
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJED |
EPA 560/1-78-003 |
|
OCSPP Chemical Library/Washington,DC |
01/01/1988 |
ELBD ARCHIVE |
EPA 560-1-78-003 |
2 copies |
AWBERC Library/Cincinnati,OH |
07/22/2022 |
ELBD ARCHIVE |
EPA-560-1-78-003 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD ARCHIVE |
EPA 560-1-78-003 |
|
AWBERC Library/Cincinnati,OH |
11/12/2023 |
NTIS |
PB-291 332 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
v, 89 pages : illustrations ; 28 cm |
Abstract |
This report reviews the literature concerning the consequences of nutrient enrichment, the significance of phosphorus in eutrophication, critical phosphorus concentrations, the effects of eutrophication on human populations, and the extent of the eutrophication problem in the United States. The evidence contained in this report indicates that (a) excessive nutrient concentrations are associated with undesirable changes (eutrophication) in aquatic plants, depletion of dissolved oxygen, disappearance of cold water fish, and appearance of nuisance algal species; (b) excessive phosphorus is most frequently responsible for these undesirable changes in lakes; (c) lakes and reservoirs respond more severely to excessive phosphorus concentrations than do flowing waters, and do so at lower phosphorus concentrations; (d) phosphorus may at times be the limiting factor in estuaries but is not usually the limiting factor in coastal waters; (e) critical phosphorus levels which lead to eutrophication have not been clearly defined because of the variation in the response of surface waters to phosphorus caused by differences in residence times, (f) eutrophication has adversely affected human populations through increased water treatment costs, decreased property values, changes in the commercial fishery and reduction of the aesthetic and recreational values of affected lakes. |
Notes |
Issued Nov. 1978. Includes bibliographical references (pages 78-87). |
Place Published |
Washington |
Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Toxic Substances. |
PUB Date Free Form |
1978 |
NTIS Prices |
PC A05/MF A01 |
BIB Level |
m |
Medium |
unmediated |
Content |
text |
Carrier |
volume |
Cataloging Source |
OCLC/T |
Merged OCLC records |
4795092; 1225748264 |
OCLC Time Stamp |
20211202213019 |
Language |
eng |
SUDOCS Number |
EP 1.2:In 7/2 |
Origin |
OCLC |
Type |
MERGE |
OCLC Rec Leader |
01863cam 2200433Ii 45010 |