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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Description of key information

RA: DEA (CAS 109-89-7): NOEC(21d): 4.2 mg/L, LC50(21d): 5.7 mg/L
DMA: NOEC(30d): 10 mg/L

Key value for chemical safety assessment

EC10, LC10 or NOEC for freshwater invertebrates:
10 mg/L

Additional information

The structural analogue DEA (diethylamine, CAS No 109-89-7) was tested for long-term effects on Daphnia magna. Study was performed in accordance with OECD Guideline 211 (Daphnia magna reproduction test), exposure period lasted 21 days. The test revealed the following results: NOEC(21d): 4.2 mg/L, LC50(21d): 5.7 mg/L.

Concerning dimethylamine, the long-term toxicity to aquatic invertebrates was investigated over a 30 day exsposure period of newborn waterfleas (Daphnia magna) with monitoring on reproduction and mortality (Calamari, Galassi and Da Gasso, 1979). A semi-static test regime with daily renewal of the test solution was applied. The nominal test concentrations were 1, 5, 10 and 15 mg/L, beside a control of 0 mg/L. As result, a NOEC(30d) of 10 mg/L was reported.