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Sediment toxicity

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Description of key information

A 10-day LC50 value of >2,910 mg active acid/kg dw has been determined for the effects of ATMP-H on mortality of the marine sediment dwelling organism Corophium sp.

Key value for chemical safety assessment

Additional information

There are no long-term data available for sediment dwelling organisms.

A 10-day LC50 value of >2,910 mg active acid/kg dw has been determined for the effects of ATMP-H on mortality of the marine sediment dwelling organism Corophium sp. (TNO, 1997).

In a supporting short-term sediment toxicity test, a 10-day LC50 value of >5000 mg /kg dw, nominal concentratrion, has been determined for the effects of ATMP-H on mortality of the marine sediment dwelling organism Corophium volutator (Zeneca, 1995).

No test data are currently available for freshwater sediment-dwelling organisms.

Testing for toxicity to sediment organisms is not considered necessary because:

- PNECsediment has been calculated from PNECfreshwater on the basis of the equilibrium partitioning method; the risk characterisation ratio (RCR) based on PNECsediment is <1.