Registration Dossier
Registration Dossier
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EC number: 223-211-1 | CAS number: 3770-97-6
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.068 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.68 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.007 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.68 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 100 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 3.65 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.365 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:
- 0.687 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
Aquatic acute toxicity
48 h, EC50 (Daphnia magna) > 72 mg/L
72 h, ErC50 ( Pseudokirchneriella subcapitata) = 68 mg/L
96 h, LC50 (Oncorhynchus mykiss) > 54 mg/L
Aquatic chronic toxicity
72 h, NOEC (Pseudokirchneriella subcapitata) = 20 mg/L
72 h EC10 (Pseudokirchneriella subcapitata) = 33 mg/L
Biodegradation
not readily biodegradable
Partition coefficient
log Pow = 0.3 at 25 °C
Acute aquatic hazard: No category
Long-term aquatic hazard: category chronic 3
Reasoning:
Acute aquatic hazard:
All effect values are above 1 mg/L, resulting in no classification.
Long-term aquatic hazard:
The criteria for classification of a substance into the categories Chronic 1 to 3 follow a tiered approach where the first step is to see if adequate information on long-term toxicity is available allowing long-term hazard classification. Short term and long term effect concentrations are between 10 and 100 mg/L and the substance is not ready biodegradable. Concequently, classification in category 3 for long term aquatic hazard is justified.
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