Registration Dossier
Registration Dossier
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EC number: 231-977-3 | CAS number: 7783-06-4
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
There are 2 valid tests on growth inhibition of algae available. Küster (2005) examined the effect of hydrogen sulfide on the freshwater alga Chlorella fusca and determined the 24h-EC50 to 1.87 mg/L.
Breteler (1991) examined the carbon assimilation of the marine alga Skeletonema costatum and obtained a 4h-EC50 of 104 µg/L and a 4h-NOEC of 40.8 µg/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 1.87 mg/L
- EC50 for marine water algae:
- 104 µg/L
- EC10 or NOEC for marine water algae:
- 40.8 µg/L
Additional information
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