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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The No Observed Effect Concentration (NOEC) of 3-amino-4-hydroxybenzenesulphonic acid in Aquatic algae (Pseudokirchnerella subcapitata) in 72 hrs study on the basis of effect on growth was estimated to be 43.31719 mg/l. Thus considering the CLP Criteria for aquatic classification of the substance , it is concluded that 3-amino-4-hydroxybenzenesulphonic acid could not exhibit short term toxicity to green algae (Pseudokirchnerella subcapitata). 

Key value for chemical safety assessment

EC10 or NOEC for freshwater algae:
43.317 mg/L

Additional information

The No Observed Effect Concentration (NOEC) of 3-amino-4-hydroxybenzenesulphonic acid in Aquatic algae (Pseudokirchnerella subcapitata) in 72 hrs study on the basis of effect on growth was estimated to be 43.31719 mg/l.Also the weight of evidence study shows the EC 50 value to be 1712.563 mg/L.

Sr. No

Endpoint name

Value

Species

1.

NOEC

43.31719 mg/l

Pseudokirchnerella subcapitata

2.

EC50

1712.563 mg/L

Green algae

Based on the above the endpoint values and considering the CLP Criteria for aquatic classification it can be concluded that the substance 3-amino-4-hydroxybenzenesulphonic acid could not exhibit short term toxicity to aquatic algae.