Registration Dossier
Registration Dossier
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EC number: 418-280-1 | CAS number: 18600-59-4 CYASORB(R) UV-3638 LIGHT STABILISER
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.1 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 1 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.01 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
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:
- 29.5 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 2.95 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:
- 5.83 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
The acute toxicities of 3 representative aquatic species are tested, therefore PNEC in freshwater compartment and marine compartment can be derived by assessment factors. PNECs in sediment of fresh water, sediment of marine water or soil will be extrapolated by PNEC in freshwater compartment.
Conclusion on classification
The acute toxicity of Chiguard 380/Chiguard 380W to the most sensitive species Daphnia in an acute toxicity study EC50(48hr): >0.27 mg/l. >0.27 mg/l is equivalent to => 100 mg/l as WAF. Poorly soluble substances for which no acute toxicity is recorded at levels up to the water solubility, and which are not rapidly degradable and have an experimentally determined BCF≥500(or, if absent, a LogKow≥4),indicating a potential to bioaccumulate ,will be classified in Chronic Category 4 unless other scientific evidence exists showing classification to be unnecessary.
Therefore, Chiguard 380/Chiguard 380W can be classified into chronic category 4 in CLP regulation and R53 in DSD regulation respectively.
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