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Ecotoxicological information

Short-term toxicity to fish

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Link to relevant study record(s)

Description of key information

Acute toxicity to fish:
Three studies on freshwater fish are available:
Knie 1983 (DIN 38 412 part 15): LC50 48 h: 106 mg/L (Leuciscus idus)
ABC Laboratories (EPA-660/3-75-009): LC 50 96h: 75 mg/L (Salmo gairdneri )
ABC Laboratories (EPA-660/3-75-009): LC 50 96h: 75 mg/L (Lepomis macrochirus )

Key value for chemical safety assessment

LC50 for freshwater fish:
75 mg/L

Additional information

Acute toxicity to fish:

Three WoE studies on freshwater fish are available:

Knie 1983 (DIN 38 412 part 15): LC50 48 h: 106 mg/L (Leuciscus idus)

ABC Laboratories (EPA-660/3-75-009): LC 50 96h: 75 mg/L (Salmo gairdneri )

ABC Laboratories (EPA-660/3-75-009): LC 50 96h: 75 mg/L (Lepomis macrochirus )

The ABC studies were conducted with maleic anhydride which hydrolyzes under test conditions. As a result, maleic acid and its salts are believed to be the test materials investigated in this study. A LC50 of 75 mg/L for freshwater fish was taken as a worst case.