Registration Dossier
Registration Dossier
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EC number: 700-570-7 | CAS number: 1217271-49-2
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 52.4 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 524 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 5.24 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 100 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 394 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 39.4 µg/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:
- 48 µg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
The PNEC derivation was justified as follows:
PNEC freshwater sediment:
K_(susp-water) = 1.88
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_freshwater sediment
= (K_(susp-water)/ RHO_(susp)) * PNEC_water * 1000
= (1.88/1150) * 5.24E-02 * 1000
= 0.085 mg/kg-ww -> 0.394 mg/kg-dw
PNEC marine water sediment:
K_(susp-water) = 1.88
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_marine water sediment
= (K_(susp-water)/ RHO_(susp)) * PNEC_marine water * 1000
= (1.88/1150) * 5.24E-03 * 1000
= 0.0085 mg/kg-ww -> 0.0394 mg/kg-dw
PNEC soil:
K_(soil-water) = 1.38
RHO_(soil) = 1700
Conversion factor (wwt -> dwt): 1.13
PNEC_soil
= (K_(soil-water)/ RHO_(soil)) * PNEC_freshwater * 1000
= (1.38/1700) * 5.24E-02 * 1000
= 0.0425 mg/kg-ww -> 0.048 mg/kg-dw
Conclusion on classification
Acute (short-term) aquatic hazard:
Algae is the most sensitive aquatic species with an EC50 of 52.4 mg/L. In conclusion, the substance has not to be classified with regard to acute toxicity according to Regulation (EC) No 1272/2008 (CLP), as amended for the twelfth time in Regulation (EU) 2019/521.
Chronic (long-term) toxicity:
Algae is the most sensitive aquatic species with an EC50 (72 -h) of 52.4 mg/L, an EC10 of 14.3 and a NOEC of 20.6 mg/L. In a ready biodegradability test, it was shown, that the substance was not ready biodegradable. Thus, the substance has to be classiffied as environmental chronic toxic cat. 3 (H412: Harmful to aquatic life with long lasting effects) according to Regulation (EC) No 1272/2008 (CLP), as amended for the twelfth time in Regulation (EU) 2019/521.
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