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Search Results : EPA National Library Catalog

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  1 A guide to aeration/circulation techniques for lake management / 1977
  2 Algal metabolite influence on bloom sequence in eutrophied freshwater ponds / 1976
  3 An approach to a relative trophic index system for classifying lakes and reservoirs : a preliminary anaysis of National Eutrophication Survey Data collected during the 1972 sampling period. 1974
  4 Assessment of coastal hypoxia and eutrophication in U.S. waters. 2003
  5 Atmospheric nutrient input to coastal areas : reducing the uncertainties / 1996
  6 Clean coastal waters : understanding and reducing the effects of nutrient pollution / 2000
  7 Compendium of lake and reservior data collected by the National Eutrophication Survey in the western United States 1978
  8 Compendium of lake and reservoir data collected by the National Eutrophication Survey in Eastern North-Central, and Southeastern United States. National Eutrophication Survey ; Corvallis Environmental Research Laboratory and Environmental Monitoring & Support Laboratory, Las Vegas, Nevada. 1978
  9 Compendium of lake and reservoir data collected by the National Eutrophication Survey in the Central United States. National Eutrophication Survey ; Corvallis Environmental Research Laboratory and Environmental Monitoring & Support Laboratory, Las Vegas, Nevada. 1978
  10 Compendium of lake and reservoir data collected by the National Eutrophication Survey in the northeast and north-central United States 1975
  11 Differences in phosphorus and nitrogen delivery to the Gulf of Mexico from the Mississippi River basin {electronic resource} / 2008
  12 Effects of nutrient enrichment in the nation's estuaries : a decade of change : National Estuarine Eutrophication Assessment update / 2007
  13 Effects of nutrient enrichment in the Nation's estuaries a decade of change : National Estuarine Eutrophication Assessment update / {electronic resource} : 2007
  14 Evaluation of the Earth resources technology satellite (ER TS-1) multispectral scanner as a tool for the determination of lacustrine trophic state 1975
  15 Lake eutrophication : results from the national eutrophication survey / 1975
  16 Marine aquaculture in the United States : environmental impacts and policy options / 2001
  17 Marine dead zones understanding the problem / {electronic resource} : 2007
  18 Modifications of models predicting trophic state of lakes : adjustment of models to account for the biological manifestations of nutrients / 1981
  19 Modifications of models predicting trophic state of lakes adjustment of models to account for the biological manifestations of nutrients / 1981
  20 National estuarine eutrophication assessment : effects of nutrient enrichment in the nation's estuaries / 1999
  21 National estuarine eutrophication assessment a decade of change : assessing change in eutrophic condition from the early 1990s to 2004 / {electronic resource} : 2007
  22 National eutrophication survey : data acquisition and laboratory analysis system for lake samples / 1975
  23 National eutrophication survey methods for lakes sampled in 1972 1974
  24 Nitrogen and phosphorus in wastewater effluents, working paper no. 22, a prelim. analysis of Nat. Eutrophication Survey data collected during the 1972-73 sampling period. 1974
  25 North American project--a study of U.S. water bodies : a report for the Organization for Economic Cooperation and Development / 1977
  26 North American project--a study of U.S. water bodies a report for the Organization for Economic Cooperation and Development / {microform} : 1977
  27 Nutrient control actions for improving water quality in the Mississippi River basin and northern Gulf of Mexico / 2009
  28 Nutrient control actions for improving water quality in the Mississippi River Basin and northern Gulf of Mexico [electronic resource] / 2008
  29 Nutrient criteria technical guidance manual : lakes and reservoirs / 2000
  30 Nutrient criteria technical guidance manual lakes and reservoirs / {microform} : 2000
  31 Polluting the Mississippi River basin's small streams and wetlands [electronic resource] / 2008
  32 Relationships between drainage area characteristics and nonpoint source nutrients in streams : a preliminary analysis of National Eutrophication Survey data from 143 drainage areas in northeastern and northcentral United States / 1974
  33 Relationships between drainage area characteristics and nonpoint source nutrients in streams a preliminary analysis of National Eutrophication Survey data from 143 drainage areas in northeastern and northcentral United States / {microform} : 1974
  34 Relationships of phosphorus and nitrogen to the trophic state of northeast and north-central lakes and reservoirs : preliminary analysis of National Eutrophication Survey data collected during the 1972-73 sampling period. 1974
  35 Submarine ground-water discharge, nutrient loading and nitrogen transformations {electronic resource} / 2007
  36 To save America's small lakes (water pollution control and abatement) third report / 1967
  37 Trophic characterization of the U.S. and Canadian nearshore zones of the Great Lakes 1979



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