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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
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).