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Freshwater Biology


EPA# 822R980081998 Update of Ambient Water Quality Criteria for Ammonia
EPA# 440585001Ambient Water Quality Criteria for Ammonia - 1984
EPA# 823F99013Fact Sheet: 1999 Update of Ambient Water Quality Criteria for Ammonia
EPA# 823F99024Fact Sheet: 1999 Update of Ambient Water Quality Criteria for Ammonia -Technical Version
EPA# 600382033Guide to the Freshwater Tubificidae (Annelida: Clitellata: Oligochaeta) of North America
EPA# 821R02013Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms, Fourth Edition

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