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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

72h NOEC (Growth Rate) = 6.3 mg/L
72h NOEC (AUC) = 9.5mg/L
72h NOEC (Yield) = 6.3 mg/L
 
72h LOEC(Growth Rate) = 9.5mg/L
72h LOEC (AUC) = 12.5mg/L
72h LOEC (Yield) = 9.5 mg/L
 
72h ErC50[3] = 27.6mg/L
72h EbC50[4]= 15.4 mg/L
72h EyC50[5]= 15.5 mg/L

[1]AUC1 (Area Under Curve according to EU Method C.3) means the integral of the biomass. Calculation see under 8.3.
[2]Yield (according to OECD Guideline 201) is defined as the biomass at the end of the exposure period minus the biomass at the start of the exposure period. Calculation see under 8.4
[3]72h ErC50 is the concentration with 50 % inhibition of the growth rate after 72 hours.
[4]72h EbC50 is the concentration with 50 % inhibition of the AUC after 72 hours.
[5]72h EyC50 is the concentration with 50 % inhibition of the Y

Key value for chemical safety assessment

EC50/LC50 for freshwater algae:
27.6 mg/L
EC10, LC10 or NOEC for freshwater algae:
6.3 mg/L

Additional information