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OLS Field Name OLS Field Data
Main Title Summary and conclusions from the forthcoming Technical report 56 : "Nutrient enrichment and control requirements in the upper Chesapeake Bay" /
Author Clark, Leo J. ; Donnell, Daniel K. ; Villa, J, Orterio
Other Authors
Author Title of a Work
Donnelly, Daniel K.
Villa, Orterio,
CORP Author United States. Environmental Protection Agency.
Publisher [publisher not identified],
Year Published 1973
Report Number EPA 903/9-73-002-a
Stock Number PB-228 578
OCLC Number 02349046
Subjects Eutrophication--Chesapeake Bay (Md. and Va.) ; Cyanobacterial blooms--Chesapeake Bay (Md. and Va.) ; Algal blooms--Chesapeake Bay (Md. and Va.) ; Plankton blooms--Chesapeake Bay (Md. and Va.) ; Phosphorus--Environmental aspects. ; Nitrogen--Environmental aspects. ; Atlantic Ocean--Chesapeake Bay.
Additional Subjects Eutrophication--Chesapeake Bay ; Water bloom--Chesapeake Bay ; Phosphorous--Environmental aspects ; Nitrogen--Environmental aspects ; Water quality ; Nutrients ; Water pollution ; Algae ; Phosphorus ; Susquehanna River ; Concentration(Composition) ; Estuaries ; Eutrophication
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJAD  EPA 903/9-73-002a 2 copies Region 3 Library/Philadelphia, PA 10/13/1995
EJAM STORAGE TD225.C54R47 v.7 Region 3 Library/Philadelphia, PA 04/08/2022
EJBD ARCHIVE EPA 903-9-73-002a Headquarters Library/Washington,DC 06/24/2013
EJBD  EPA 903-9-73-002a Headquarters Library/Washington,DC 03/27/2017
EJDD  CB 00660 Env Science Center Library/Ft Meade,MD 08/28/1998
ESAD  EPA 903-9-73-002A Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-228 578 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 24, [66] leaves : illustrations, map ; 27 cm
Abstract The upper portions of the Chesapeake Bay and its tidal tributaries are currently suffering from an insidious eutrophication problem as evidenced by the increased frequency and persistence of undesirable algal blooms and the dramatic changes in the Bay's natural flora which have recently been experienced. Water quality monitoring data collected between 1968 and 1971 have shown an upward trend in phosphorus levels and indicated that inorganic nitrogen may presently be the growth rate-limiting nutrient since it is almost nonexistent during peak bloom conditions. In order to limit the maximum algal standing crop to 40 ug/l chlorophyll a, it was determined that total phosphorus and inorganic nitrogen concentrations should not exceed 0.12 mg/l and 0.8 mg/l, respectively. The achievement of these concentrations necessitates the institution of a considerable abatement program in the Susquehanna River Basin and the Baltimore metro area. (Modified author abstract)
Notes At head of title: Annapolis Field Office, Region III, Environmental Protection Agency. "EPA-903/9-73-002-a."
Place Published Place of publication not identified
Corporate Au Added Ent United States. Environmental Protection Agency.
Alternate Title Nutrient enrichment and control requirements in the upper Chesapeake Bay.
PUB Date Free Form 1973
Ti Tra Differently Nutrient enrichment and control requirements in the upper Chesapeake Bay.
NTIS Prices PC A05/MF A01
BIB Level m
Document Type BC
Medium unmediated
Content text
Carrier volume
Cataloging Source OCLC/T
OCLC Time Stamp 20150612131250
Language eng
Origin OCLC
OCLC Rec Leader 02216cam 2200493Ii 45020