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Short-term toxicity to aquatic invertebrates

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Description of key information

Short term toxicity of KMPS triple salt to aquatic invertebrates was tested in two key studies and one supporting study. The acute toxicity test to Daphnia magna according to the EU test method  C2  and the OECD Test Guideline 202 was tested in a semi static test. The acute toxicity of KMPS triple salt to Mysid shrimp was determined in a semistatic dose-response 96-h test according to the US EPA guideline 850.1035. The acute toxicity of KMPS triple salt to Daphnia magna was determined in a static-test system according to the OECD Guideline No. 202, with an exposure period of 24 h.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
3.5 mg/L

Marine water invertebrates

Marine water invertebrates
Effect concentration:
1.18 mg/L

Additional information

The acute toxicity test in Daphnia magna was performed according to EU Guideline C2 and the OECD Guideline 202 without deviations. Daphnids were exposed for 48 h to 5 different concentrations in order to derive an EC 50 of 3.5 mg/L

The acute toxicity of KMPS triple salt to Mysid shrimp was determined in a semistatic dose-response 96-h test according to the US EPA guideline 850.1035. The 96 -h LC50 was determined to be 1180 µg KMPS triple salt/L with a confidence interval of 1070 - 1290 µg KMPS triple salt/L.

The acute toxicity of KMPS triple salt to Daphnia magna was determined in a static-test system according to the OECD Guideline No. 202, with an exposure period of 24 h. The calculated EC 50 was 5.3 mg/L.