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Endangered Species

Biological Evaluation Chapters for Diazinon ESA Assessment

EPA has finalized the Biological Evaluation for Diazinon. The final evaluation is based on interim methods developed in conjunction with Fish and Wildlife Service and National Marine Fisheries Service in response to the National Academy of Science report on assessing risks to threatened and endangered species from pesticides. 

Response to Comments on the Biological Evaluations for Chlorpyrifos, Diazinon and Malathion (PDF) (20 pp, 977 K, About PDF)

On this page:

Diazinon Executive Summary for ESA Assessment (DOCX)(4 pp, 31 K)

Chapter 1: Diazinon Problem Formulation for ESA Assessment (DOCX)(64 pp, 859 K)

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Chapter 2: Diazinon Effects Characterization for ESA Assessment (DOCX)(151 pp, 2 MB)

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Chapter 3: Diazinon Exposure Characterization for ESA Assessment (DOCX)(65 pp, 2 MB, About PDF)

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Chapter 4: Diazinon Effects Determinations for ESA Assessment (DOCX)(45 pp, 144 K, About PDF)

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