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Ecotoxicological information

Toxicity to soil macroorganisms except arthropods

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Link to relevant study record(s)

Description of key information

Three studies of acute toxicity to earthworms are available: each includes testing exposure by contact with wetted filter paper and exposure via soil. The lowest EC50 value arising from these studies is that reported by Lee, Yoon and An (2015) for Perionyx excavatus in artificial soil (made with 10% peat moss having a 95% organic matter content), and this 72h EC50 is judged suitable for use in assessment.

Key value for chemical safety assessment

Short-term EC50 or LC50 for soil macroorganisms:
826 mg/kg soil dw

Additional information

An earthworm EC50 derived from testing in soil is anyway to be preferred to one determined based on exposure by filter paper contact.