TECHNICAL REPORT DATA 



(Please read Instructions on the reverse before completing) 



1. REPORT NO. 



EP A -6Q Q/9-8n - n^4 



3. RECIPIENT'S ACCESSION NO. 



4. TITLE AND SUBTITLE 



Proceedings of the Third USA-USSR Symposium on the 

 Effects of Pollutants Upon Aquatic Ecosystems : 

 Tfieoretical Aspects of Aquatic Toxicology 



5. REPORT DATE 



July 1980 Issuing Date 



6. PERFORMING ORGANIZATION CODE 



AUTHOR(S) 



Environmental Protection Agency-USA 

 Soviet Academy of Sciences -USSR 



8. PERFORMING ORGANIZATION REPORT NO. 



, PERFORMING ORGANIZATION NAME AND ADDRESS 



Large Lakes Research Station 

 Environmental Research Laboratory - 

 Grosse He, Michigan 48138 



10. PROGRAM ELEMENT NO. 



Duluth 



A30B1A 



11. CONTRACT/GRANT NO. 



Joint US-USSR Project 

 02.02-13 



12. SPONSORING AGENCY NAME AND ADDRESS 



Environmental Research Laboratory - Duluth MN 

 Office of Research and Development 

 U.S. Environmental Protection Agency 

 Duluth, Minnesota 55804 



13. TYPE OF REPORT AND PERIOD COVERED 



Inhouse 



14. SPONSORING AGENCY CODE 



EPA/600/03 



15. SUPPLEMENTARY NOTES 



Prepared in cooperation with the Institute for the Biology of Inland Waters, 

 Soviet Academy of Sciences, Borok, Jaroslavl Oblast, USSR 



16. ABSTRACT 



The Joint US-USSR Agreement on Cooperation in the Field of Environmental Pro-, 

 tection was established in May of 1972. These proceedings result from one of the 

 projects. Project 02.02-13, Effects of Pollutants Upon Aquatic Ecosystems and Per- 

 missible Levels of Pollution. 



As knowledge related to fate and transport of pollutants has grown, it has be- 

 come increasingly apparent that local and even national approaches to solving pollu- 

 tion problems are insufficient. Not only are the problems themselves frequently inter 

 national, but an understanding of alternate methodological approaches to the problem 

 can avoid needless duplication of efforts. This expansion of interest from local and 

 national represents a logical and natural maturation from the provincial to a global 

 concern for the environment. 



In general, mankind is faced with very similar environmental problems regardless 

 of the national of political boundaries which we have erected. While the problems may 

 vary slightly in type or degree, the fundamental and underlying factors are remarkably 

 similar. It is not surprising, therefore, that the interests and concerns of 

 environmental scientists the world over are also quite similar. In this larger sense, 

 we are our brother's brother, and have the ability to understand our fellowman and his 

 dilemma, if we but take the trouble to do so. It is this singular idea of concerned 

 scientists exchanging views with colleagues that provides the basic strength for this 



iproject, 



KEY WORDS AND DOCUMENT ANALYSIS 



DESCRIPTORS 



b. IDENTIFIERS/OPEN ENDED TERMS 



c. COSATI Field/Group 



Freshwater 

 Phosphorus 

 Ni trogen 

 Pesticides 

 Fishes 

 Stream Flow 

 Toxici ty 



Bioassay 

 Communi ties 

 Phytoplankton 

 Nutrients 

 Waste Treatment 

 Water Quali ty 



Toxic Substances 



Macrobenthos 



Microbiota 



Water Quality Criteria 



Great Lakes 



Maximum 



Permissible 



Concentrations 



57H 

 68D 



18. DISTRIBUTION STATEMENT 



Release to Public 



19. SECURITY CLASS (This Report/ 



unclassified 



21. NO. OF PAG2S 



20. SECURITY CLASS (This page/ 



unclassified 



22. PRICE 



231. 



EPA Form 2220-1 (Rev. 4-77) 



PREVIOUS EDITION iS OBSOLE 



241 



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