Substance	Malathion
Reference Title	Handbook of acute toxicity of chemicals to fish and aquatic invertebrates.
Species	Orconectes nais
Habitat Type	Aquatic
Effect	Mortality
Effect Measurement	-
Standard Test	-
Duration Endpoints Value Concentration Typ Analysis 4  d LC50 = 180  µg/l Dur Normalized normalised 4  d LC50 = 180  µg/l
Test Medium	Freshwater
pH		Temperature
Exposure Typ		Hardness
Method Listing
summary
Memo
Remark