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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

One reliable chronic toxicity study was identified.  Biesinger and Christensen reported a 21d-EC16 of 42 mg Sr/L (nominal values), which can be used for the estimation of a NOEC-value of 21 mg Sr/L (i.e., EC16/2; ECHA-guidance).

Key value for chemical safety assessment

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

Additional information

According to ECHA Guidance, a NOEC can be estimated by dividing a reliable ECX by 2, and this when X is situated between 10 and 20 % effect. The 21d-EC16 of 42 mg Sr/L for D. magna, as reported by Biesinger and Christensen (1972) is in compliance with this criterion. Therefore a NOEC of 21 mg Sr/L could be derived for the freshwater compartment (NOEC=EC16/2).