Registration Dossier
Registration Dossier
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EC number: 231-511-9 | CAS number: 7601-89-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.021 mg/L
- Assessment factor:
- 10
- PNEC freshwater (intermittent releases):
- 1 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.002 mg/L
- Assessment factor:
- 100
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 7 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 4.67 mg/kg sediment dw
- Assessment factor:
- 100
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.467 mg/kg sediment dw
- Assessment factor:
- 1 000
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 2.55 mg/kg soil dw
- Assessment factor:
- 1 000
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
According to the CLP regulation, the basis for the identification of a hazard to the aquatic environment for a substance is the aquatic toxicity of that substance. As indiacted in the Guidance of Application of the CLP criteria (Version 4.0 - November 2013), classification for the aquatic environment is predicated on having toxicity data for fish, crustacea, and algae/aquatic plant available. The available acute toxicity information on Perchlorate indicated that the substance is not harmful for algae, daphnia and fish. In addition, long-term toxicity data obtained on these taxa gave NOEC/EC10 > 10 mg/L.
Perchlorate is considered as a non bioaccumulative species regarding results obtained in the frame of experiments equivalent to OECD 305 which is also supported by its intrinsic properties (high water solubility and non complexing agent). As it is an inorganic substance, no data is required for characterizing readily biodegradation potential of Perchlorate.
As a conclusion, Perchlorate is not classified according to classification criteria edicted under CLP regulation.
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