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EC number: 218-080-2
CAS number: 2050-08-0
Toxicity studies on soil organisms covering invertebrates,
micro-organisms and plants have been carried out on the registered
substance. The soil toxicity data have been used in the chemical safety
assessment to establish PNECsoil.
The observed LC50 from the acute earthworm test (OECD 207) was 127.8
mg/kg soil dw. Chronic or long-term toxicity testing on soil
microorganisms (OECD 216) and terrestrial plants (OECD 208 with six
species, two monocotyledonous and four dicoyledonous) gave respectively
a NOEC of ≥500 mg/kg soil dw and EC10 of 89.3 mg/kg soil dw (tomato,
most sensitive species). According to ECHA guidance (Chapter R.7c,
section R.126.96.36.199) where data from chronic or long-term tests are
available, they should be used in preference to short-term tests to
derive the PNEC. Since two long-term NOECs/EC10s are available, the PNEC
has been derived from the lowest long-term result of the two trophic
levels using, in accordance with ECHA Table R.10-10, an assessment
factor of 50 to give a PNECsoil of 1.786 mg/kg soil dw. This value leads
to PECsoil/PNEC soil < 1.
Given that the outcome of the chemical safety assessment demonstrates
safe use of the substance to the terrestrial compartment, additional
long-term testing is not considered to be necessary.
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.
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