Registration Dossier
Registration Dossier
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EC number: 907-713-4 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 2.65 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 26.5 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.265 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 2.65 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 10
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 1.06 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.106 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:
- 0.211 mg/kg soil dw
- 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
Short-term aquatic toxicity data is available for all three trophic levels (daphnia, algae and fish). The lowest short-term L(E)C50 is for daphnia: the 48-hour EC50 is 2.65 mg/L. Since the EC50 is > 1mg/L the substance is not classified for short-term hazards to the aquatic environment according to the EU CLP Regulation 1272/2008/EC and its amendments Table 4.1.0(a).
Chronic aquatic toxicity data is only available for one trophic level (algae). Therefore, the long-term hazard has been assessed based on the chronic value for algae according to Table 4.1.0(b)(iii) for rapidly degradable substances, as well as the acute values for daphnia and fish coupled with environmental fate data according to Table 4.1.0 (b)(iii) and classifying according to the most stringent outcome.
a) The chronic aquatic toxicity data for algae (72 hr NOEC = 1.68 mg/l) results in no chronic classification because the value is > 1mg/L
b) The acute aquatic toxicity data for daphnia (EC50 = 2.65 mg/L), and environmental fate data (readily biodegradable and log Kow of 4.7, 4.9) results in a Category Chronic 2 classification
c) The acute aquatic toxicity date for fish (LC50 = 10.9 mg/L) and environmental fate data (readily biodegradable and log Kow of 4.7,4.9), which results in a Category Chronic 3 classification
Based on the most stringent outcome, it is concluded that the substance is classified Aquatic Chronic 2 (H411) according to the EU CLP Regulation 1272/2008/EC & its amendments.
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