Registration Dossier
Registration Dossier
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EC number: 272-805-7 | CAS number: 68912-13-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 91 µg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 9.1 µg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 4.8 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 12.2 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 1.22 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:
- 4.4 mg/kg soil dw
- Assessment factor:
- 10
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential to cause toxic effects if accumulated (in higher organisms) via the food chain
Additional information
Conclusion on classification
The short-term LC50 or EC50 values were 6.7, >14 and 2.5 mg/l, for fish, daphnia and algae, respectively. Therefore, based on the available short-term data, Cyclaprop does not need to be classified for acute aquatic toxicity according EU CLP (EC 1272/2008 and its amendments).
For Cyclaprop adequate chronic toxicity data are available for three trophic levels. According to the EU CLP, Figure 4.1.1, in case chronic test data are available for all three trophic levels, the chronic classification should be determined based on data from chronic tests. The lowest NOEC / EC10 from these chronic tests is a 33d-EC10 of 0.91 mg/L for fish. Therefore, based on the available chronic data in combination with its non-rapidly degradability, Cyclaprop needs to be classified as H411 according to EU CLP (EC 1272/2008 and its amendments).
For GHS: The acute toxicity of 2.5 mg/l results in Acute Cat. 2 (H401).
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