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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Link to relevant study record(s)

Description of key information

One study has been chosen as key study, it is of reliability 1, conducted according to the OECD 202 guideline, C2 EU method and GLP (Voltes, 2009a). 
This 48-h acute toxicity of PMP to Daphnia magna was studied under static conditions. Daphnids were exposed to water control and test chemical at measured concentration of 0.691, 1.32, 2.63, 5.86 10.3, 22.5 and 49.6 mg/L test substance for 48h.  Immobilization and sublethal effects were observed daily. The 48-hour EC50 was 3.00 mg/L. The 48-hr NOEC based on immobilization was 1.32 mg/L. No sublethal effects were found.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
3 mg/L

Additional information

Three other studies are referenced, as reliability 3 and led to 24h EC50 between 7.2 to 19.3 mg/L (on Daphnia sp.).

Based on the results of the key study and supporting by the 3 others, PMP would be considered as toxic to aquatic invertebrates.