Registration Dossier
Registration Dossier
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EC number: 276-957-5 | CAS number: 72869-86-4
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.01 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.1 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.1 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 3.61 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 4.56 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.46 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:
- 0.91 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
Classification relevant information
Biodegradation:
· Not readily biodegradable (22%, based on CO2 evolution) within 28 d (OECD 301 B)
Bioaccumulation:
· log Kow: 3.39 (OECD 117, HPLC method)
Acute toxicity:
· to fish: LC50 (96 h) = 10.1 mg/L (measured, geom. mean) for Danio rerio (OECD 203)
· to aquatic invertebrates: EC50 (48 h) > 1.2 mg/L (mean measured, corresponding to 100 mg/L nominal) for Daphnia magna (OECD 202)
· to aquatic algae: EC50 (72 h) > 0.68 mg/L (mean measured, corresponding to 100 mg/L nominal) for Desmodesmus subspicatus based on growth rate (OECD 201)
Chronic toxicity:
· to algae: NOEC (72 h) = 0.21 mg/L (mean measured) for Desmodesmus subspicatus based on growth rate (OECD 201)
Classification justification according to CLP
Based on the data above the substance (CAS 72869-86-4) is not rapidly biodegradable. Acute aquatic toxicity data are available for three trophic levels. The lowest acute effect value was determined for fish and amounts 10.1 mg/L (LC50, 96 h). Chronic toxicity data are available only for algae with a NOEC of 0.21 mg/L. Therefore, the substance needs to be classified and labelled as hazardous to the environment Chronic 2 H411 according to the consolidated version of Regulation (EC) No 1272/2008 and further amendments (ATPs).
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