Registration Dossier
Registration Dossier
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EC number: 201-240-0 | CAS number: 79-97-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 2.39 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 23.9 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.239 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 2.39 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 0.56 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.212 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 21.2 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:
- 40.9 µg/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
Environmental fate and pathways
Biodegradation
Not readily biodegradable (5.99% in 28 d, OECD 301 D)
Bioaccumulation
log Kow = 4.11 (OECD 107, EU method A.8)
Aquatic short-term toxicity
Aquatic invertebrates
EC50 (48 h) = 4.7 mg/L (nominal, OECD 202, D. magna)
Aquatic algae
ErC50 (72 h) = 4.42 mg/L (nominal, OECD 201, P. subcapitata)
Fish
LC50 (96 h) = 2.39 (nominal, OECD 203, O. Latipes)
Aquatic long-term toxicity
Aquatic algae
ErC10 (72 h) = 1.53 mg/L (nominal, OECD 201, P. subcapitata)
Conclusion on CLP
Short-term effect values are available for all three trophic levels and one long-term effect value is available for aquatic algae. All EC/LC50 values for acute toxicity are in the same order of magnitude and > 1 mg/L. Therefore, the substance is not classified as acutely hazardous to the environment. However, the EC/LC50 values are > 1 to ≤ 10 mg/L and the substance is not readily biodegradable according to OECD criteria and has a log Kow of 4.11. Therefore, the substance is classified and labelled as Category Chronic 2 for long-term environmental hazards, according to the consolidated version of Regulation (EC) No 1272/2008 and further amendments.
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