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: 216-475-4 | CAS number: 1594-08-7
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The ErC50 of FAT 36038/J TE observed for test period of 72-hour for freshwater alga (Pseudokirchneriella subcapitata) was calculated as 0.16 mg/L.
The EyC50 of FAT 36038/J TE bserved for a test period of 72-hour for freshwater alga (Pseudokirchneriella subcapitata) was calculated as 0.29 mg/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 0.16 mg/L
- EC10 or NOEC for freshwater algae:
- 0.001 mg/L
Additional information
A key study was performed to determine growth Inhibition in Freshwater green Algae (Pseudokirchneriella subcapitata) in accordance with OECD-201 guideline with FAT 36038/J TE. The test concentrations were selected as 0.0008, 0.003, 0.008, 0.03, 0.09, 0.28 and 0.88 mg/L.
At the end of 72 hr exposure time the following results were observed:
Average Specific Growth Rate:
The percent inhibition on the average growth rate at the end of 72 hour was 0.17 %, 11.36 %, 11.77 %, 26.96 %, 51.63 %, 56.31 and 68.14 % in test concentration of 0.0008, 0.003, 0.008, 0.03, 0.09, 0.28 and 0.88 mg/L respectively.
From the average specific growth rate recorded with the different test concentrations viz.,0.0008, 0.003, 0.008, 0.03, 0.09, 0.28 and 0.88 mg/L the concentration that inhibited 50% growth (ErC50) of Freshwater green Algae (Pseudokirchneriella subcapitata) was calculated as 0.16 mg/L.
The no observed effect concentration (NOEC) and the lowest observed effect concentration (LOEC) were recorded to be 0.0008 mg/L and 0.003 mg/L respectively.
Yield:
The percent inhibition on the yield at the end of 72 hour was 0.04 %, 5.20 %, 6.15 %, 20.32 % 31.16 %, 43.23 and 70.79 % in test concentrations 0.0008, 0.003, 0.008, 0.03, 0.09, 0.28 and 0.88 mg/L respectively.
From the yield recorded with the different test concentrations viz.,0.0008, 0.003, 0.008, 0.03, 0.09, 0.28 and 0.88 mg/L, the concentration that inhibited 50 % growth (EyC50) of Freshwater green Algae (Pseudokirchneriella subcapitata) was calculated as 0.29 mg/L.
The no observed effect concentration (NOEC) and lowest observed effect concentration (LOEC) were calculated as 0.0008 mg/L and 0.003 mg/L respectively
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.
Route: .live2