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RECORD NUMBER: 273 OF 1150

OLS Field Name OLS Field Data
Main Title Effects of Atrazine on Aquatic Ecosystems: A Physical and Mathematical Modeling Assessment.
Author Malanchuk, J. L. ; Kollig, H. P. ;
CORP Author State Univ. of New York Coll. at Plattsburgh.;Environmental Research Lab., Athens, GA.
Year Published 1985
Report Number EPA/600/J-85/015;
Stock Number PB85-195725
Additional Subjects Atrazine ; Ecology ; Aquatic biology ; Marine biology ; Water pollution ; Herbicides ; Inorganic nitrates ; Inorganic phosphates ; Mathematical models ; Nutrients ; Hazards ; Comparison ; Model tests ; Experimental design ; Reprints ; Ecosystems ; Microcosms
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB85-195725 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 15p
Abstract Physical and mathematical models were employed to determine the effects of atrazine on pH, dissolved oxygen, and dissolved nutrients in aquatic systems. The data show that changes in measured variables are observed in the presence of toxicant but that systems recover rapidly when toxicant input ceases. Simple linear donor-controlled mathematical models of nutrient cycles are capable of simulating the effect, although sufficient model detail should be incorporated to account for direct and indirect effects and to improve verification. System measurements are responsive in terms of disruption and recovery. Changes in nutrient cycling patterns should be incorporated into the hazard evaluation process.
Availability Notes Pub. in Validation and Predictability of Laboratory Methods for Assessing the Fate and Effects of Contaminants in Aquatic Ecosystems, ASTM STP 865, p212-224 1985.
NTIS Title Notes Journal article.
Title Annotations Reprint: Effects of Atrazine on Aquatic Ecosystems: A Physical and Mathematical Modeling Assessment.
PUB Date Free Form c1985
Category Codes 6C; 6F; 8A; 68D; 57H; 47D
NTIS Prices Not available NTIS
Primary Description 600/01
Document Type NT
Cataloging Source NTIS/MT
Control Number 519923414
Origin NTIS
Type CAT