Registration Dossier
Registration Dossier
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EC number: 279-242-6 | CAS number: 79720-19-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.097 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.97 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.01 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.097 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 2.13 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 4.14 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.414 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:
- 0.828 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 1.67 mg/kg food
- Assessment factor:
- 300
Additional information
Conclusion on classification
Classification according directive 2008/1272/EEC (CLP) is performed independently for acute and chronic hazards.
Acute hazard category:
The highest acute aquatic toxicity of three trophic levels was determined for the freshwater fish Cyprinus carpio with a LC50 (96 h) of 97 µg/L. This results in the following acute classification:
Category Acute 1, H400: Very toxic to aquatic life
M-factor: 10
Chronic hazard category:
Using available acute data, decisive for a possible chronic classification is failure or fulfilment of (1) rapid degradability and / or (2) presence or absence of a bioaccumulation potential.
The substance is not rapidly degradable. As such, chronic classification based on acute data does apply here:
Category Chronic 1, H410: Very toxic to aquatic life with long lasting effects
M-factor: 10
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