Registration Dossier
Registration Dossier
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EC number: 415-430-8 | CAS number: 86403-32-9 CYASORB UV-3853 LIGHT STABILIZER; DASTIB 845; SANDUVOR 845
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.001 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 10 mg/kg sediment dw
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 1.01 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 8.18 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 1.33 mg/kg food
- Assessment factor:
- 300
Additional information
In CSR the PNEC aqua ( freshwater) was extrapolated from acute EC50 for daphnia, applying an AF=1000 and PNEC =1,07E-04 mg/L.
The new long term toxicity test for daphnia was performed with result of NOEC for daphnia 0,054 mg/L. This value was used for recalculation of PNEC aqua(freshwater)= 5,4E-04 mg/L.
Conclusion on classification
Dangerous to the environment
R50/53: Very toxic to aquatic organisms, may cause long -term adverse effects in the aquatic environment.
The ecotoxicity data submitted for the first notification suggest that the substance is highly toxic to fish, daphnia, algae, however additional ecotoxicity data for Dastib 845 indicate that the chemical is not toxic to fish and algae up to its apparent limit of solubility in water. Acording the expert statement submitted by notifier aquatic toxicity in these tests may be of a physico-chemical nature of the test substance and not due to classic aquatic toxicity.
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