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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

Assessment of the effect of FAT 40870/ ATE on the growth of the green alga Pseudokirchneriella subcapitata.

Key value for chemical safety assessment

EC50 for freshwater algae:
100 mg/L
EC10 or NOEC for freshwater algae:
56

Additional information

The study was performed to assess the effect of the test item on the growth of the green alga Pseudokirchneriella subcapitata

Following preliminary range-finding tests, Pseudokirchneriella subcapitata was exposed to an aqueous solution of the test item at concentrations of 10, 18, 32, 56 and 100 mg/Lfor 72 hours (the results are based on nominal concnetrations).

Exposure of Pseudokirchneriella subcapitata to the test item gave the following results:

Response Variable

EC50(mg/L)

No Observed Effect Concentration (NOEC) (mg/L)

Lowest Observed Effect Concentration (LOEC) (mg/L)

Growth Rate

>100

56

100

Yield

>100

100

NA

The test item have no toxic effect on the growth of the green alga Pseudokirchneriella subcapitata