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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 key study for this endpoint is based on the study report (van Wijk and Garttener-Arends, 1999), which is a Klimisch 1 GLP study conducted according to OECD 202 guideline with analytical monitoring of the test substance (ammonium thiocyanate).  The EC50 value is 3.56 mg/L, which is equivalent to 2.72 mg/L SCN-

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
3.56 mg/L

Additional information

Two studies are available for this endpoint: 1) GLP study with analytical monitoring for ammonium thiocyanate, and 2) non GLP study for potassium thiocyanate. The GLP study is preferred for use in risk assessment purposes.