Registration Dossier
Registration Dossier
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EC number: 619-079-3 | CAS number: 949109-75-5
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no data: aquatic toxicity unlikely
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- no hazard identified
Sediment (marine water)
- Hazard assessment conclusion:
- no hazard identified
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no hazard identified
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential to cause toxic effects if accumulated (in higher organisms) via the food chain
Additional information
Plant sterols occur naturally in the environment. Concentrations of plant sterols are considered with reference to the key marker substance, β-sitosterol, which is the major constituent by weight in plant sterols as registered. Measured concentrations of β-sitosterol in the environment are consistent with its ubiquitous essentiality in plant matter. Concentrations in soil vary with the soil horizon, with very high concentrations in leaf litter (ca. 500 mg/kg), declining to 1 to 90 mg/kg in the topsoil and very much lower concentrations in the deeper layers. Concentrations in soil that have been subject to normal agricultural practices are likely to be higher. Wash-off from soil into surface water is a natural and unavoidable process which can give rise to concentrations of the order of 1 μg/L. As a lipophilic substance it will adsorb to the organic matter present in suspended and bottom sediments. Therefore it is consistent with its properties to find measurable concentrations in sediments, with 1 mg/kg being typical.
Conclusion on classification
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.
