Registration Dossier
Registration Dossier
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EC number: 204-574-5 | CAS number: 122-78-1
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 1.6 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 16 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.16 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 1.6 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 0.15 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 9.86 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.986 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:
- 1.03 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
Classification related key information
- Biodegradation in water: readily biodegradable (69% after 28 d, OECD 301 D)
- Bioaccumulation: log Kow 1.44 (OECD 117)
- Aquatic acute toxicity:
Fish: LC50 (96 h) Danio rerio > 6.2 mg/L (arithmetic mean measured, OECD 203)
Aquatic invertebrates: EC50 (48 h) Daphnia magna = 20 mg/L (geometric mean measured, OECD 202)
Algae: ErC50 (72 h) Pseudokirchneriella subcapitata = 1.6 mg/L (geometric mean measured, OECD 201)
- Aquatic chronic toxicity:
Fish: No data available
Aquatic invertebrates: No data available
Algae: ErC10 (72 h) Pseudokirchneriella subcapitata = 0.86 mg/L (geometric mean measured, OECD 201)
Classification justification according to CLP
Based on the data above, the substance is considered to be rapidly degradable in the environment. Bioaccumulation is not expected. Aquatic algae turned out to be the most sensitive organism (ErC10 (72 h) = 0.86 mg/L). Thus, the substance has to be classified and labelled as “Aquatic Chronic 3” (H412) according to the consolidated version Regulation (EC) No 1272/2008 (CLP) and considering all further amendments.
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