Registration Dossier
Registration Dossier
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EC number: 279-815-0 | CAS number: 81782-77-6
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.76 µg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 4 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 76 ng/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.4 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 10
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 92 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 9.2 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:
- 18 µg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 111.1 mg/kg food
- Assessment factor:
- 90
Additional information
Conclusion on classification
In accordance with Regulation EC 1272/2008, the substance requires classification as Aquatic Acute 1 (H400: Very toxic to aquatic life) on the basis of the lowest EC50 of 0.4 mg/L from the short-term toxicity to aquatic invertebrates study. According to Regulation (EC) no. 286/2011, Table 4.1.3, in order to classify a mixture containing the substance an M-factor of 1 should be used when applying the summation method.
Chronic aquatic toxicity data is only available for two trophic levels (algae and daphnia). Therefore, the long-term hazard has been assessed based on both the available chronic data (a) and acute fish & environmental data (b):
a) The lowest chronic aquatic toxicity data is for daphnia (EC10 = 38ug/L = 0.038 mg/L), which for a rapidly degradable substance results in a Chronic 2 classification
b) The 96h LC50 for fish is 3mg/L, the log Kow 3.9 and the substance readily biodegradable, which results in no classification
Based on the most stringent outcome, it is concluded that the substance is classified Aquatic Chronic 2 (H411) according to the CLP Regulation 1272/2008/EC & adaptation 286/2011/EC.
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