Registration Dossier
Registration Dossier
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EC number: 620-056-5 | CAS number: 874195-61-6
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 6.23 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 62.3 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.623 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 6.23 µg/L
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:
- 0.076 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.008 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:
- 0.011 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
Environmental fate and pathways
Biodegradation:
The substance is not expected to fulfil the stringent criteria of ready biodegradation according to OECD.
Bioaccumulation:
Log Kow: 1.5 (OECD 107)
Aquatic toxicity:
- to Fish: LC50 (96h) > 100 mg/L (nominal) for Oncorhynchus mykiss and Cyprinus carpio
- to Crustacea: EC50 (48h) > 50 mg/L (nominal) for Daphnia magna
- to Algae: ECr50 (96h) = 6.23 mg/L (nominal) for Pseudokirchnerella subcapitata
- to Algae: NOEC (72h) = 0.096 mg/L (nominal) Pseudokirchnerella subcapitata
Classification justification according to CLP
Based on the data above, triafamone is considered to have low potential for accumulation but is not readily biodegradable. The acute aquatic toxicity L(E)C50 is > 1 mg/L for fish, daphnia and algae. Valid chronic toxicity data are available for algae - the NOEC is < 0.1 mg/L. Therefore, triafamone needs to be classified and labelled as environmental hazard Chronic Cat. 1 according to the Regulation (EC) No. 1272/2008 (CLP) and the Regulation (EU) No. 286/2011.
M-factor for acute aquatic toxicity: no classification for acute toxicity
M-factor for chronic aquatic toxicity: 1
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