Registration Dossier
Registration Dossier
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EC number: 200-882-9 | CAS number: 75-59-2
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.5 µg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 30 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.05 µg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 5 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 30 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 3 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:
- 5.7 µg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential to cause toxic effects if accumulated (in higher organisms) via the food chain
Additional information
Conclusion on classification
The following key results were used for the environmental classification:
Lowest acute E(L)C50 value 3.0 mg/L to Daphnia magna (Noack, 2001)
Lowest chronic NOEC value 25 µg/L (0.025 mg/L) to Daphnia magna (Dow Chemical Co., 1991)
Ready biodegradable in an OECD 301B test (Noack, 2001)
Log Kow: <-1.4 (Brekelmans, 2013)
Acute (short-term) aquatic hazard:
The lowest EC50 value (to Daphnia magna) was > 1 mg/L. The substance does not need to be classified for this hazard category according to Table 4.1.0(a) of Regulation EC1272/2008 (CLP).
Chronic (long-term) aquatic hazard:
Two chronic NOEC values are available (for Daphnia and algae). As the lowest NOEC value (to Daphnia magna) was > 0.01 mg/L and <= 0.1 mg/L and the substance is readily biodegradable, the substance needs to be classified as Chronic Category 2 according to Table 4.1.0(b)(ii) of Regulation EC1272/2008 (CLP).
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