Registration Dossier
Registration Dossier
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EC number: 204-825-9 | CAS number: 127-18-4
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.051 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.036 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.005 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 11.2 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.903 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.09 mg/kg sediment dw
- Extrapolation method:
- assessment factor
Hazard for air
Air
- Hazard assessment conclusion:
- PNEC air
- PNEC value:
- 8.2 µg/m³
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.01 mg/kg soil dw
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
For fresh water fish the lowest LC50 from validated data is 5 mg/l (Oncorhynchus mykiss), for invertebrates the lowest EC50 from validated data is 8.5 mg/l (Daphnia magna) and for algae the lowest EC50 from validated data is 3.64 mg/l (Chlamydomonas reinhardtii). For marine water fish the lowest LC50 from validated data is 5 mg/l (Limanda limanda) In addition, for fish a 10-day NOEC of 1.99 mg/l is reported for fry of Jordanella floridae. For Daphnia a 28-day NOEC based upon reproduction of 0.51 mg/l is reported from validated sources. For fresh water algae a 72-hour EC10 of 1.77 mg/l is reported, and this is taken as a long-term NOEC value.
Various terrestrial toxicity data are reported for tetrachloroethylene. Long-term studies have been conducted with three trophic levels/species; invertebrates (Eisenia fetida),plants (e.g.Phaseolus vulagaris) and soil dwelling bacteria. The lowest NOEC reported is for nitrification in a loam soil with a NOEC of ≤ 0.1 mg/kg wet weight .
Conclusion on classification
Initial EU and GHS Hazard Classification
Based on available experimental ecotoxicological data for daphnids, fish and algae, tetrachloroethylene is currently classified as N, R51/53 (Toxic to aquatic organisms and may cause long-term adverse effects in the aquatic environment), since the lowest L(E)C50 value is between 1 and 10 mg/l and because tetrachloroethylene is not readily biodegradable (GHS Aquatic Chronic 2; H411).
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