Registration Dossier
Registration Dossier
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EC number: 255-615-9 | CAS number: 41999-70-6
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 127.1 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 1 271 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 12.71 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 127.1 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Sediment (marine water)
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
The environmental classification of the test substance is currently not harmonized according to the CLP Regulation (EC) 1272/2008 and the Dangerous Substance Directive 67/548/EC. Based on available acute aquatic toxicity data, the lowest valid effect concentration for freshwater aquatic organisms is 127.1 mg/L (EC50 for algae). Based on the available acute data, the substance should not be classified for acute toxicity following Annex I, table 4.1.0 a of the CLP regulation (there are no acute values ≤ 1 mg/L).
The 72-h NOEC was determined to be < 25 mg/L (the lowest tested concentration). However no other long-term values are available. Following Annex I, table 4.1.0 b (ii and iii) of the CLP Regulation, the substance should not be classified for chronic toxicity either as no valid chronic data was available, and the acute data was above 100 mg/L and the substance is biodegradable.
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