Registration Dossier
Registration Dossier
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EC number: 261-879-6 | CAS number: 59719-67-4
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.019 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.186 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.002 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 89.4 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.709 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.071 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:
- 0.131 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
PNEC freshwater sediment:
K_(susp-water) = 9.54
RHO_(susp) = 1150
PNEC_freshwater sediment = (K_(susp-water) / RHO_(susp)) * PNEC_water * 1000
= (9.54 / 1150) * 0.0186 * 1000
= 0.154 mg/kg wwt * 4.6
= 0.709 mg/kg dwt
PNEC marine water sediment:
K_(susp-water) = 9.54
RHO_(susp) = 1150
PNEC_marine water sediment = (K_(susp-water) / RHO_(susp)) * PNEC_marine water * 1000
= (9.54 / 1150) * 0.00186 * 1000
= 0.0154 mg/kg wwt * 4.6
= 0.0709 mg/kg dwt
PNEC soil:
K_(soil-water) = 10.6
RHO_(soil) = 1700
PNEC_soil = (K_(soil-water) / RHO_(soil)) * PNEC_water * 1000
= (10.6 / 1700) * 0.0186 * 1000
= 0.116 mg/kg wwt * 1.13
= 0.131 mg/kg dwt
Conclusion on classification
Acute aquatic toxicity:
Algae were the most sensitive species in acute aquatic toxicity tests with Incozol 4, resulting in a 72-hour EC50 of 18.6 mg/L. Based on acute aquatic toxicity results obtained, the test substance was not classified and labelled according to Regulation 1272/2008/EC (CLP), as amended for the tenth time in Regulation (EU) No 2017/776, with respect to short-term (acute) aquatic toxicity.
Chronic aquatic toxicity:
Incozol 4 was tested in an aquatic toxicity test with algae, according EU-method C.3 and OECD guideline 201. The 72-hour EC50 for growth rate was 18.6 mg/L and the 72-hour NOEC 0.0259 mg/L. The EC10 was calculated to be 0.194 mg/L. Due to the big diffenrence between EC50 and NOEC value the classification and labelling is based on the more reliable EC10 value. The test substance was shown to be not ready biodegradable. Thus, the substance has to be classiffied as long-term (chronic) aquatic toxic substance in cat. 2 (H411) according to Regulation (EC) No 1272/2008 (CLP), as amended for the tenth time in Regulation (EU) No 2017/776.
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