Registration Dossier
Registration Dossier
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EC number: 240-539-0 | CAS number: 16484-77-8
Toxicity to soil microorganisms
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to soil microorganisms
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
- Justification for type of information:
- In accordance with Column 2 of REACH Annex IX, information requirement section 9.4.2, this study does not need to be conducted as the chemical safety assessment concluded that there is no hazard. The assessment indicated that there is low potential for the substance to adsorb to soils. The Kow is -0.19 and as such it is consiered hydrophillic. It is not a PBT or vPvB substance. Furthermore, in a study on phototransformation in soil (Connor, 1996a) microbial processes were shown to continue after treatment with the test material. There are a number of studies on biodegradation in soil which showed that soil microbial activity was unaffected by the administration of the test material. In partciular one study showed that the microbial activity was constant over a 100 day test period (Schocken, 1997) and soil microbial activity was a significant factor in the degradation of the test material (Lindholm et al., 1982). As such it is considered unnecessary to conduct further testing.
Reference
Description of key information
In accordance with Column 2 of REACH Annex IX, information requirement section 9.4.2, this study does not need to be conducted as the chemical safety assessment concluded that there is no hazard. The assessment indicated that there is low potential for the substance to adsorb to soils. The Kow is -0.19 and as such it is consiered hydrophillic. It is not a PBT or vPvB substance.
In a study on phototransformation in soil (Connor, 1996a) microbial processes were shown to continue after treatment with the test material. There are a number of studies on biodegradation in soil which showed that soil microbial activity was unaffected by the administration of the test material. In partciular one study showed that the microbial activity was constant over a 100 day test period (Schocken, 1997) and soil microbial activity was a significant factor in the degradation of the test material (Lindholm et al., 1982). As such it is considered unnecessary to conduct further testing.
Key value for chemical safety assessment
Additional information
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.
