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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

72 h EC50 for growth inhibition of Pseudokirchneriella subcapitata of Atlen SK is > 100 mg/L WAF.
72 h NOEC for growth inhibition of Pseudokirchneriella subcapitata of Atlen SK is >= 100 mg/L WAF.

Key value for chemical safety assessment

EC50 for freshwater algae:
100 mg/L
EC10 or NOEC for freshwater algae:
100 mg/L

Additional information

Presented results originate from a guideline study conducted in accordance with requirements of GLP and OECD guidelines on aquatic toxicity testing of difficult substances. Hence, this information can be considered reliable and suitable for use as the key study for this endpoint.