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EC number: 939-718-2 | CAS number: 1474044-80-8
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The toxicity to aquatic algae for BARIUM BIS( DI C8-C10, BRANCHED, C9 RICH, ALKYLNAPHTHALENE SULPHONATE) is determined by read-cross from testing with the close structural analog DNNSA (di C8-C10, branched, C9 rich, alkylnaphthalene sulphonic acid). The lowest EC10 value in the DNNSA algae test is for cell number (yield) which is 0.16 mg/L.
Key value for chemical safety assessment
- EC10 or NOEC for freshwater algae:
- 0.16 mg/L
Additional information
Under the conditions of the DNNSA study with Pseudokirchneriella subcapitata, reduced growth rate and inhibited the yield of this fresh water algae species significantly at a TWA concentration of 0.27 mg/l and higher. The EC50 for growth rate reduction (ERC50: 0-72h) was beyond the range tested, i.e. exceeded a TWA concentration of 9.6 mg/l. The EC50 for yield inhibition (EYC50: 0-72h) was 2.4 mg/l with a 95% confidence interval ranging from 0.53 to 10 mg/l. The lowest EC10 in this study is for cell number (yield) which is 0.16 mg/L and this is the key value for safety assessment.
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