Registration Dossier
Registration Dossier
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EC number: 207-866-0 | CAS number: 498-66-8
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 7.3 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 73 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.73 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
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:
- 8.2 µg/kg sediment dw
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.82 µg/kg sediment dw
- Assessment factor:
- 5 000
- Extrapolation method:
- assessment factor
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 1 mg/kg soil dw
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Toxicity to microorganisms was determined to be LC50 > 1000 mg/l. The LC50 for Daphia as the most sensitive species was determined as 7.3 mg/l. Based on these values, the PNEC were derived using default assment factors.
PNECs for sediment in fresh and marine water were based on the available NOEC data from algae and daphnia, using a further factor 10 in addition to the default assessment factors, because no long-term studies are available.
Conclusion on classification
acute aquatic toxicity data show LC50/EC50 levels between 10 and 100 mg/l for all three trophic levels. There is also no indication of ready biodegradation in water. The available data justify a classification as chronic 2 (R51/53 respectively).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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