Registration Dossier
Registration Dossier
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EC number: 200-751-6 | CAS number: 71-36-3
Toxicity to terrestrial plants
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
The substance shows no effects up to the limit concentration in acute aquatic toxicity tests. Furthermore, the substance shows no potential for accumulation in soil due to its ready biodegradable properties, its LogPow value and is not ionisable. Therefore, an impact on terrestrial organisms is very unlikely and thus, studies on soil organisms are not required.
This is underlined by a supporting short term toxicity study revealing EC50 values of 390 mg/L for Lactuva sativa (Reynolds 1977).
For deriving a PNECsoil the guidance for the implementation of REACH, Chapter 10 states: “when only one test result with soil organisms is available the risk assessment is performed both on the basis of this result using assessment factors and on the basis of the equilibrium partition method (EPM). From both PECsoil/PNECsoil ratios the highest one is chosen for the risk characterisation.” Taking the EC50 concentration of Reynolds (1977) into account a PNECsoil of 0.39 mg/kg soil d.w. (assessment factor 1000) can be derived. In contrast using the equilibrium partitioning method a PNECsoil of 0.0166 mg/kg soil d.w. can be derived (for the derivation it was assumed that PNECsoil is equal to PNECporewater). Therefore, the risk assessment will be performed using the derivation of PNECsoil from EPM (PNECaqua).
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.
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