Registration Dossier
Registration Dossier
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: 923-400-5 | CAS number: -
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
No inhibition of respiration of activated sludge was observed up to 100 mg/L the highest tested concentration in an OECD 209 compliant study.
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 100 mg/L
Additional information
The purpose of this study was to determine the effect of the test item on bacteria according to the OECD guideline 209 "Activated Sludge, Respiration Inhibition Test" and the OECD principles of Good Laboratory Practices.
The effect of the test item on bacteria is assessed by measuring the micro-organisms respiration rate on a sample of activated sludge during an incubation period of 3 hours.
The EC50calculations of respiration inhibition rate of reference and test substances are presented hereafter:
Test item: EC50- 3h > 100 mg/L
3,5-Dichlorophenol = 9.43 mg/L
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.
