Registration Dossier
Registration Dossier
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EC number: 938-649-5 | CAS number: 1469982-92-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.007 mg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.002 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.002 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 5.57 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.136 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 5.474 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:
- 0.023 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
The substance is classified as hazardous to the aquatic environment as Chronic Category 1 (H410: Very toxic to aquatic life with long lasting effects.).
The classification is based on acute toxicity testing in fish, invertebrates and algae, in both marine water and freshwater (freshwater results read-across from Tall oil diethylenetriamine imidazoline).
The 'mean' results and worst case study results for each species are given below:
Marine Fish:
Worst case 96 hr LC50: 1.37 mg/l
Freshwater Fish:
96 hr LC50: 0.19 mg/l
Marine Invertebrates:
Mean 48 hr LC50: 1.11 mg/l
Worst case 48 hr LC50: 0.72 mg/l
Freshwater Invertebrate:
48 hr LC50: 0.18 mg/l
Marine algae:
Mean 72 hr EC50 (growth rate): 0.15 mg/l
Worst case 72 hr EC50 (growth rate): 0.08 mg/l
Freshwater algae:
72 hr EC50 (growth rate): 0.5 mg/l.
The use of marine data is considered appropriate for the evaluation of classification, as the main release of the substance will be to the sea, rather than to freshwater.
The most sensitive marine species was determined to be algae.
The results above show that the substance classification of Chronic Category 1 is applicable, as the 'mean' marine result for algae is <1 mg/l, the worst case marine invertebrate result is <1 mg/l and all read-across freshwater data is <1 mg/l.
As the substance cannot be considered readily biodegradable then all criteria for classification as Chronic Category 1 are met.
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