Registration Dossier
Registration Dossier
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EC number: 205-252-7 | CAS number: 136-60-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.002 mg/L
- Assessment factor:
- 1 000
- PNEC freshwater (intermittent releases):
- 0.015 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 10 000
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.025 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.002 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:
- 0.167 mg/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
The environmental classification of the test substance is currently not harmonised according to the CLP Regulation (EC) 1272/2008. Based on available acute aquatic toxicity data, the lowest valid effect concentration for freshwater aquatic organisms is 1.5 mg/L (LC50 for fish). Based on the available acute data, the substance should not be classified for acute toxicity following Annex I, table 4.1.0a of the CLP regulation (as there are no acute values ≤ 1 mg/L).
In the algal growth inhibition study, the ErC10 for algae was 1.5 mg/L. No other long-term values are available, therefore the final classification is made according to the most stringent outcome of the available chronic and acute effect concentrations. The potential classification is made for the chronic algae data, following Annex I, table 4.1.0 b (ii) of the CLP Regulation. The resulting classification was compared with the potential classification made using the acute toxicity data for the other trophic levels, following Annex I, table 4.1.0 b (iii) of the CLP Regulation. Taking into account that the EC10 for algae is > 1 and the fact that the substance is rapidly degradable and its log Kow is < 4, the substance is not classified for chronic toxicity under the CLP regulation.
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