Registration Dossier
Registration Dossier
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EC number: 240-521-2 | CAS number: 16470-24-9
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.11 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 1.1 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.011 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 110.44 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 11.04 mg/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:
- 3 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
Conclusion on classification
The following data are considered for the evaluation of the classification of the substance for aquatic toxicity.
Short term toxicity
Fish: LC50 (96 h) > 1000 mg/l
Aquatic invertebrates: EC50 (48h) > 100 mg/l
Algae: ErC50 (72h) > 123 mg/l (nominal); NOEC (72h, growth rate) = 30.8 mg/l (nominal)
Long-term toxicity
Fish: NOEC (fry length, fry weight) = 4.41 mg/l (TWA, mean measured)
Aquatic invertebrates:NOEC (21d, overall threshold effects) = 1.10 mg/l
The substance is determined to be not rapidly degradable and not bioaccumulative considering its LogPow. No acute aquatic toxicity was observed. Valid chronic toxicity data are available for Daphnia and fish where the NOEC determined is > 1 mg/l. Therefore the substance is not classified for the environment according to the Regulation (EC) No.1272/2008 (CLP).
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