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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The effective concentration (EC50) value of phenetole in microorganism (Photobacterium phosphoreum)was found to be 7.53 mg/L.

Key value for chemical safety assessment

EC50 for microorganisms:
7.53 mg/L

Additional information

Based on the various studies reviewed for target substance phenetole for the endpoint toxicity to microorganism with Klimisch rating 2 and 4.The results are summarized as follows-

Sr.No

Endpoint

Effect values

Basis for effects

Duration

Species

Remarks

1.

EC50

7.3 mg/L

Growth inhibition

30 min

Photobacterium phosphoreum

Publication

2.

IGC50

169 mg/L

Growth inhibition

48 hrs

Tetrahymena pyriformis

Publication

3.

pT

5.33 mg/L

Physiology

4.98 min

Vibrio fisheri

Publication

Based on the above values the inhibition concentration varies from 5.33 -169 mg/L.Also the EC50 value was assessed to be7.3 mg/L.