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Sediment toxicity

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Description of key information

Under the condition of the test, Mackam LSB-50 shown a 10 day-LC50 > 14695 mg/kg dw  on seawater invertebrates (corresponding to a LC50 value greater than 4408 mg/kg dw in active ingredient).

Key value for chemical safety assessment

EC50 or LC50 for marine water sediment:
4 408 mg/kg sediment dw
EC10, LC10 or NOEC for marine water sediment:
4 408 mg/kg sediment dw

Additional information

The study was carried out to determine the sediment phase toxicity of Mackam CBS 50G to the intertidal amphipod Corophium volutator according to the OSPARCOM Guidelines (2005) - A sediment bioassay using an amphipod corophium sp.

Test organisms were introduced to sediment containing Mackam LSB-50 over the nominal concentration of 15, 147, 471, 1469 and 14692 mg/kg dry weight of sediment and exposed for a period of ten days in a static test.

Mackam LSB-50 exibited a 10 day LC50 value greater than 14695 mg/kg dry weight sediment to the marine amphipod Corophium volutator in the sediment phase (corresponding to a LC50 value greater than 4408 mg/kg in active ingredient). The Calculated 10 day NOEC was determined to be 14695 mg/kg dry weight sediment (corresponding to a 10 day-NOEC of 4408 mg/kg dw in active ingredient).