Registration Dossier
Registration Dossier
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EC number: 480-880-4 | CAS number: 608-23-1
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 1.05 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 10.5 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.105 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 1.05 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 0.7 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.129 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 12.9 µg/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:
- 25.3 µg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 3.33 mg/kg food
- Assessment factor:
- 300
Additional information
Conclusion on classification
Acute hazard category
There are adequate short-term studies available covering three trophic levels, i.e. algae, daphnia and fish. According to Regulation (EC) No 2008/1272, the submission substance does not need to be classified for aquatic acute hazards, because available EC50 values are > 1 mg/L, i.e. the most sensitive EC50 value is 48h-EC50 (Daphnia magna, immobilisation) = 1.05 mg/L.
Chronic hazard category
There is one adequate long-term toxicity effect concentration available, i.e. for algae. The derived effect concentration is 72h-NOEC (Selenastrum capricornutum, growth rate) = 0.66 mg/L. The submission substance is not rapidly biodegradable. Following the classification system of Regulation (EC) No 2008/1272, the submission substance must be classified for aquatic hazard category chronic 2, based on both acute derived effect concentrations and chronic effect concentrations (i.e. 1 mg/L < EC50 < 10 mg/L, 0.1 mg/L < NOEC < 1 mg/L, not rapidly biodegradable).
In conclusion, the submission substance is classified for aquatic hazard Category Chronic 2, 'toxic to aquatic life with long-lasting effects' (H411).
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