Registration Dossier
Registration Dossier
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EC number: 947-394-9 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 45.5 µg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 17 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 4.55 µg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 1.7 µg/L
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 1.33 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.133 mg/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:
- 0.239 mg/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
Acute toxicity: The 96 -h LC50 for fish was determined to be 1.7 mg/L using Oncorhynchus mykiss, the 48 -h EC50 for Daphnia magna was determined to be 2.5 mg/L and the ErC50 (24 -48h) for algae (Scenedesmus subspicatus) was determined to be 42 mg/L. According to CLP, Annex I, Section 4.1, Table 4.1.0, in order to classify a substance as Acute 1, a L(E)C50 value for one of the trophic levels must be <= 1mg/L. As all the L(E)C50 values are >1 mg/L, classification for Acute aquatic toxicity is not required.
Chronic toxicity: The 33-d NOEC in an OECD TG 210 study using Pimephales promelas was reported as 0.455 mg a.i./L based on post-hatch survival. The 21-d NOEC in an OECD TG 211 study using Daphnia magna was reported as >= 2 mg a.i./L based on mortality and reproduction. The 72-h NOEC for algae (Scenedesmus subspicatus) was reported as 15 mg/L (OECD TG 201, EU Method C.3). The substance is readily biodegradable. The substance is classified according to CLP, Annex I, Section 4.1, Table 4.1.0 as Aquatic Chronic 3.
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