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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

Key value for chemical safety assessment

EC50 for freshwater algae:
0.004 mg/L
EC10 or NOEC for freshwater algae:
0.002 mg/L

Additional information

The determination of the growth inhibition of the freshwater algae Pseudokirchneriella subcapitata (previously known asRaphidocelis subcapitata and Selenastrum capricornutum) exposed to the test item1-DECANAMINE, N-DECYL, N-METHYLfor a duration of 72 hours was assessed according to the OECD Guideline 201.

Algae were exposed to DECANAMINE, N-DECYL, N-METHYLdissolved in dilution water.

The concentrations of test item causing a 50 % reduction in biomass (EbC50) or in growth rate (ErC50) were estimated. The results were as follows:


EC50-72h, mg/L (95%CI)

NOEC, mg/L

Cell growth – Biomass

0.004 (0.001 - 0.046)


Growth rate – Cell multiplication

0.004 (0.003 - 0.011)


CI: confidence interval; ND: not determined