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Toxicity to aquatic plants other than algae

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Description of key information

IC50 (7 d) = 1.6 mg a.i./L (Lemna gibba)

Key value for chemical safety assessment

Additional information

The toxicity of tetramethylthiuram disulfide (CAS No. 137-26-8) to Lemna gibba was investigated in a study conducted according to EPA OPPTS 850.4400: Aquatic Plant Toxicity Test using Lemna spp. Tiers I & II (1996), under GLP conditions.Lemna gibba was exposed to this compound for 7 days within a static water regime, resulting in an IC50 value of 1.6 mg a.i./L and a NOAEC of 0.057 mg/L.