Registration Dossier
Registration Dossier
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EC number: 200-756-3 | CAS number: 71-55-6
Toxicity to terrestrial plants
Administrative data
Link to relevant study record(s)
Description of key information
Two studies are included in the dossier. The first study was conducted on dicot plants (S.bicolor and B.napus) and the second on the hybrid poplar trees. The results of the studies are shown below.
S.bicolor - EC50 48mg/L, NOEC 19mg/L
B.napus - EC50 19mg/L, NOEC 6.9mg/L
Poplar - zero growth of poplar trees is 269 +/- 29 mg/L. and concentration resulting in a 50% reduction in transpiration is 160 +/- 33 mg/L.
Key value for chemical safety assessment
Additional information
In the study conducted on plants the authors conclude that concentrations required to induce toxic effects in higher plants would only occur following major accidental release. Environmental levels recorded by number of authors indicate that and adequate levels of safety existed between expected concentrations and those creating adverse effects in higher plants.
In the study conducted on poplar trees it is evident from the results obtained that deciduous trees tolerate quite high concentrations of chlorinated hydrocarbons and the authors conclude that as the concentrations of these materials in groundwater is usually less than 1,000ug/L adverse effects should not be encountered/expected in the environment if phytoremediation measures are employed.
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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