Registration Dossier
Registration Dossier
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EC number: 915-730-3 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 4.4 µg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.44 µg/L
- Assessment factor:
- 100
- 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:
- 3.73 mg/kg sediment dw
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.75 mg/kg sediment dw
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 2.7 mg/kg soil dw
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 26.7 mg/kg food
- Assessment factor:
- 90
Additional information
Conclusion on classification
The short-term LC50 or EC50 values were 1.4, 1.3 and > 2.6, for fish, daphnia and algae, respectively, so between 1 and 10 mg/l. Therefore OTNE does not need to be classified for acute aquatic toxicity according to EU CLP (1272/2008 and its amendments).
Chronic toxicity data should be used for the classification of long-term hazards if available. Chronic toxicity tests are available for fish, invertebrates and algae. The lowest NOEC / EC10 in these chronic tests is a 21d-EC10 reproduction of 0.044 mg/l for Daphnia magna. Therefore, based on the available chronic data, OTNE needs to be classified for its long-term hazard to the environment. As the substance meets the criteria for rapidly biodegradable, Aquatic Chronic 2 is applicable. The classification results in H411 (Aquatic Chronic 2) according to EU CLP (1272/2008 and its amendments).
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