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EC number: -
CAS number: -
Two long-term terrestrial toxicity tests were performed (Earthworm
Reproduction Test - OECD 222; Nitrogen Transformation Test, OECD 216).
In the earthworm reproduction and growth study with 400160 the No
Observed Effect Concentration (NOEC) for mortality, growth, reproduction
and feeding activity of the earthworm Eisenia fetida was determined to
be higher than or equal 1000 mg test item/kg soil, i.e. the highest
The nitrogen transformation activity of soil after treatment with 400160
was determined according to OECD 216. One valid experiment was
performed. The study was performed using 5 concentrations (1000 / 1800 /
3200 / 5600 / 10000 mg/kg) of 400160. The resulting calculated 28d EC50
value was 2800 mg/kg.
The PNEC for the soil compartment was derived by applying an assessment
factor of 50 on the lowest effect value of these 2 long-term toxicity
tests. The screening assessment gives a PEC/PNEC ratio of <1. Therefore
no further toxicity testing for soil organisms has to be conducted.
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