Registration Dossier
Registration Dossier
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 202-476-7 | CAS number: 96-09-3
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.007 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 5.4 mg/kg sediment dw
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.54 mg/kg sediment dw
Hazard for air
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
Hazard for predators
Additional information
Results from acute tests with fish, Daphnia and algae are available. No long-term studies were performed. The lowest short-term aquatic toxicity test result is the fish (Cyprinus carpio) EC50 (96 h) = 6.9 mg/L (Acute toxicity test). As there are no long-term data available and the substance is rapidly degradable and the log Kow ≥ 4 (Styrene oxide has an n-octanol/water partition coefficient log Kow of 1.61 according to the peer-reviewed handbook) the substance is not to be classified as hazardous to the aquatic environment.
Conclusion on classification
According to Directive 67/548/EEC as well as GHS Regulation EC No. 1272/2008 styrene oxide is not classified as hazardous to the environment.
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.
