Registration Dossier
Registration Dossier
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EC number: 205-187-4 | CAS number: 135-37-5
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.75 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 1.01 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.075 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 232 mg/L
- Assessment factor:
- 1
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 3.45 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.345 mg/kg sediment dw
- Extrapolation method:
- assessment factor
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.249 mg/kg soil dw
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Data from both EDG and Na3NTA were used to evaluate the ecotoxicological profile; some read across was applied to the endpoints. For EDG mainly acute studies were available, while for Na3NTA both acute and chronic studies were present. The structural comparability, similar environmental fate & behaviour and similar sensitivity of aquatic organisms in acute studies to both EDG and Na3NTA justify extrapolation.
Additional data, albeit not always reliable, confirm the short-term and long term toxicity endpoints used to derive the PNECs above.
Conclusion on classification
Reliable toxicity data are available for freshwater species representing fish, invertebrates, algae, microorganisms and a mollusc. Short-term (acute) exposures of EDG and Na3NTA showed toxicity values generally > 100 mg/L. All trophic levels of aquatic organisms revealed similar sensitivities to EDG and Na3NTA. Long-term exposures to invertebrates and fish revealed NOECs of 7.5 and >43 mg/L, respectively, based on the values from Na3NTA. For EDG a NOEC for algae was concluded at 12 mg/L.
These short- and long-term data, when considered with bioaccumulative and degradation information (readily biodegradable), result in EDG being non-classified and considered to be practically non-toxic to aquatic organisms.Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
