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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

By applying weight of evidence approach the endpoint values was found to be EC50=162mg/l;NOEC=3.211644mg/l and LOEC=21.7231 mg/l in a 72 to 120 hrs.study on the basis of growth and population effect.Thus,considering the CLP Criteria for aquatic classification of the substance , it is concluded that Phenetole does not exhibit toxicity to aquatic algae and cyanobacteria(Pseudokirchnerella subcapitata).

Key value for chemical safety assessment

EC10 or NOEC for freshwater algae:
3.212 mg/L

Additional information

Based on studies reviewed for toxicity to aquatic algae and cyanobacteria from reliable sources having Klimish rating 2and 4 for target and readacross.

The summary of the results are presented below

Sr.no

Endpoint

Effect values

Basis for effects

duration

species

 Remarks

1

EC50

162mg/l

Growth

96 hrs.

Pseudokirchnerella subcapitata

 Publication RA 100 -66 -3

2

NOEC

3.211644 mg/l

Growth

72 hrs.

Pseudokirchnerella subcapitata

 Predicted data

3

LOEC

21.7231 mg/l

Population

120 hrs.

Pseudokirchnerella subcapitata

 Predicted data

 

By applying weight of evidence approach the endpoint values was found to be EC50=162mg/l;NOEC=3.211644mg/l and LOEC=21.7231 mg/l in a 72 to 120 hrs.study on the basis of growth and population effect.Thus,considering the CLP Criteria for aquatic classification of the substance , it is concluded that Phenetole does not exhibit toxicity to aquatic algae and cyanobacteria(Pseudokirchnerella subcapitata).