Registration Dossier
Registration Dossier
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EC number: 485-230-3 | CAS number: 1455-42-1
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:
- 100 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.549 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.055 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:
- 0.051 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 33.33 mg/kg food
- Assessment factor:
- 300
Additional information
The PNECs for the aquatic environment are derived from the lowest effect level observed in the available acute aquatic toxicity tests by applying the assessment factors to the lowest L(E)C50 of 100 mg/L. PNEC STP was derived from the available study on microbial respiration inhibition study giving a NOEC of 1000 mg/L by applying an assessment factor of 10. The PNEC secondary poisoning was derived from the available information on repeated dose toxicity of 1000 mg/kg bw/day by applying an assessment factor of 90. For soil and sediment PNECs, wet weight PNECs were calculated using equilibrium partitioning as described in Guidance R.10 & R.16, conversion to dry weight was performed with factor of 4.6 (1.13 soil).
Conclusion on classification
Environmental classification and labelling of a substance is generally based on data from short-term aquatic toxicity results, the ready biodegradability of the substance and the measured octanol/water partition coefficient. Available adequate chronic toxicity data is also relevant for the assessment of long-term aquatic hazards (Regulation 286/2011/EC).
There is no long-term aquatic toxicity data available for the test substance. The lowest short-term L(E)C50 value was 100 mg/L for fish, daphnia and algae. The test substance is inherently biodegradable and has a log Kow of 18.9.
Based on the above data, the test substance is not classified as hazardous to the aquatic environment according to the CLP Regulation 1272/2008/EC & adaptation 286/2011/EC.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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