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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

Key value for freshwater was selected by most sensitive value for sodium benzotriazole. [Acute Toxicity of 3DT199 to Rainbow trout (Oncorhynchus mykiss); 2007]
Key value for marine environment was selected from most sensitive value for sodium benzotriazole in a saltwater study for Inland Silversides [Acute toxicity of 73199 to Inland Silversides (Menidia beryllina) and Mysids (Mysidpsis bahia) 2003]

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
14.84 mg/L

Marine water fish

Marine water fish
Effect concentration:
30.75 mg/L

Additional information

Several studies on toxicological effects in different fish species are available. All studies were performed according to national or international guidelines showing a moderate toxicity to fish. The most sensitive 96 hour LC50 in freshwater species (Rainbow trout; Oncorhynchus mykiss) derived for sodium benzotriazole was 14.84 mg/L (expressed as active ingredient). One short-term freshwater study with Brachydanio rerio has been available for benzotriazole showing an effect value LC50 more than 100 mg/L.

The most sensitive value for sodium benzotriazole in a saltwater study with Inland Silversides was a 96 hour LC50 of 30.75 mg/L (expressed as active ingredient). Available marine water study from read-across with analogue Tolyltriazole has indicated moderate toxicity towards fishes, too.