Toxicity of heptachlor to aquatic life.
D000818:Animals; D002713:Chlorine / Q000633:toxicity; D005399:Fishes / Q000187:drug effects*; D006846:Hydrocarbons, Halogenated / Q000633:toxicity*; D007313:Insecta / Q000187:drug effects*; D007306:Insecticides / Q000633:toxicity*; D014876:Water Pollution
D006846:Hydrocarbons, Halogenated; D007306:Insecticides; D002713:Chlorine