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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

The 48h EC50 value for Daphnia magna exposed to ethyl methyl sulfide was 16 mg/L. Thus EMS was found to be harmful to aquatic invertebrates.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
16 mg/L

Additional information

The acute toxicity of ethyl methyl sulphide was determined in Daphnia magna in accordance with OECD testing guideline 202 and GLP requirements (Thiébaud, 2000). 20 test organisms per concentration were exposed under static conditions to doses of 0, 1, 2.1, 4.7, 10.3, 22.7 and 50 mg/L (nominal concentrations). The final concentrations of methyl ethyl sulfide were maintained within the designated limit of 80% of the initial concentrations. Therefore, the effect concentrations and NOEC have been calculated using the initial measured concentrations. The validity criteria of the study were fulfilled. The calculated 48h EC 50 was 16 mg/L.