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: 905-588-0
CAS number: -
The 14 day EC50 based on reduced fresh weight of germinated seedlings is >1000 µg/kg soil for o-xylene. Analytical monitoring showed that concentrations of o-xylene had reduced to <10% of nominal by the end of the exposure, so the true effect value is lower than that reported.
A single study to investigate the effects of
o-xylene on terrestrial plants was found. This study reported a 14 day
EC50 of >1 mg/kg nominal, although analytical measurements indicated
that <10% nominal remained at the end of the test. The methods used in
study were equivalent to OECD 208 (1984). The main deviations from this
guideline were a higher clay content than recommended, and the reporting
of results at 14 days post sowing, not 14 days post germination of the
controls. Insufficient details are given in the paper to allow us to
conclude whether the validity criteria of the test were met as results
from the controls are not reported. Despite these restrictions this
study does allow us to conclude that major effects on the growth of
lettuce are not seen at the highest concentration tested although this
is probably due to reduced exposure due to volatilisation or
biodegradation. The results from this study will not be used to
calculate a PNEC in the risk assessment due to these limitations.
The EU RAR (ECB 2007) discusses a single
study on the toxicity of ethylbenzene to terrestrial plants via the
atmosphere (Ivens, 1952). The study exposed the leaves of plants to
concentrations of ethylbenzene as vapour for 1 hour and found that the
NOEC was very close to the concentration which killed leaves completely.
The reported EC50 are 27 g/m3 for runner bean (Phaseolus multiflorus)
and 48 g/m3 for parsnip (Pastinaca sativa).
The Draft Screening Assessment Report
(Environment Canada 2014) presents results from ESG International (2002)
for the toxicity of ethylbenzene to Northern wheatgrass of 14 day LC25
of 3 mg/kg dw (coarse sandy loam). The Northern Wheatgrass value was
taken by Environment Canada as the critical toxicity value for
ethylbenzene toxicity to terrestrial species.
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.
За да гарантираме, че се възползвате максимално от функциите на нашия уебсайт, сме въвели „бисквитки“.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again