Registration Dossier
Registration Dossier
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EC number: 202-804-9 | CAS number: 99-96-7
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The ErC50 for growth rate on the test organism Desmodesmus subspicatus in the key study without and with pH adjustment were 92 mg/l and > 1000 mg/l, respectively (Biermann, 2009).
Key value for chemical safety assessment
- EC10 or NOEC for freshwater algae:
- 249 mg/L
Additional information
ErC50 > 1000 mg/l (EC10 ca. 249 mg/l) in a test with pH adjustment to 7.5 is relevant key value for the chemical safety assessment. In tests without pH adjustments effects were observed due to low pH-values (pH = 4.8 - 6.0 in the range of ErC50).
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