Registration Dossier
Registration Dossier
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EC number: 260-135-8 | CAS number: 56375-79-2
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 9.2 µg/L
- Assessment factor:
- 1 000
- PNEC freshwater (intermittent releases):
- 92 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.92 µg/L
- Assessment factor:
- 10 000
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1.8 mg/L
- Assessment factor:
- 10
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 544 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 54 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 103 µg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
The following key information was used for the environmental classification:
Lowest acute E(L)C50 value 9.2 mg/L to Ceriodaphnia dubia (Goodrich, 1994)
Lowest chronic ErC10 value 45.2 mg/L to algae ( DR. U. NOACK-LABORATORIEN, 2015)
Not ready biodegradable in an OECD 301B test (Soeter, 2015)
Acute:
As the lowest EC50 value (to Ceriodaphnia dubia) was >1 mg/L, the substance is not classified.
Chronic:
One chronic ErC10 value is available (in algae). Therefore the chronic classification needs to be determined based on acute data and based on chronic data and the most stringent outcome should be leading:
Based on the chronic ErC10 in algae > 1 mg/L, no chronic classification is necessary.
However, based on the EC50 to Ceriodaphnia dubia which is > 1 and ≤10 mg/L and the fact that the substance is not ready biodegradable, the substance should be classified as Chronic 2, H411 Toxic to aquatic life with long lasting effects.
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