Registration Dossier
Registration Dossier
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EC number: 266-587-2 | CAS number: 67151-63-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.026 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.26 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.003 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.26 mg/L
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:
- 0.619 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.062 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:
- 0.108 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 2.22 mg/kg food
- Assessment factor:
- 90
Additional information
Conclusion on classification
The environmental classification of the test substance is currently not harmonized according to the CLP Regulation (EC) 1272/2008.
Acute (short-term) aquatic hazard:
The lowest valid effect concentration for acute toxicity to freshwater aquatic organisms is 26 mg/L (EC50 for aquatic invertebrates). Based on the available acute data, the substance should not be classified for acute toxicity following Annex I, table 4.1.0 of the CLP regulation (there are no acute values ≤ 1 mg/L).
Chronic (long-term) aquatic hazard:
A 72h-NOEC of 12.5 mg/L was determined in the algal growth inhibition study, but no other long-term data are available for fish and aquatic invertebrates. 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 NOErC for algae is > 1 mg/L and the fact that the substance is not rapidly degradable and its estimated BCF is < 500, the substance is classified as Aquatic Chronic 3 under the CLP regulation.
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