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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

Key value has been selected from Blom study and the Seeland publication showing the lowest available effect concentration.

Key value for chemical safety assessment

EC50 for freshwater algae:
75 mg/L
EC10 or NOEC for freshwater algae:
1.18 mg/L

Additional information

Three freshwater tests with two different green algae species have been available. Key values for the chemical safety assessment have been selected from both OECD 201 guideline studies as the acute effect value has been calculated in the Blom study only while the publication of Seeland has shown the lower EC10 effect concentration.

The third study has been disregarded for the safety assessment as the reliability could not be evaluated due to deficiencies in the available reporting.