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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The effective concentration (EC50) value of 3-acetamido-5-amino-4-hydroxybenzenesulphonic acid in aquatic algae (Pseudokirchneriella subcapitata) in a 72 hr study based upon effect on growth was estimated to be 199.5558 mg/L

Key value for chemical safety assessment

EC50/LC50 for freshwater algae:
199.556 mg/L

Additional information

The effective concentration (EC50) value of 3-acetamido-5-amino-4-hydroxybenzenesulphonic acid in aquatic algae (Pseudokirchneriella subcapitata) in a 72 hr study based upon effect on growth was estimated to be 199.5558 mg/L.The other supporting studies also indicates that the values of toxicity to algae is beyond the classifing range.

The summary of the results are presented below

 

Sr. No

Endpoint name

Value

Units

Species

1

EC 50 199.5558 mg/l Pseudokirchneriella subcapitata
 2  EC 50  179.126  mg/l  Green algae
 3  EC 50  380.534  mg/l  Green algae

 

Based on the above endpoint results it can be concluded that the substance3-acetamido-5-amino-4-hydroxybenzene sulphonic acid do not show any toxicity effect to aquatic algae (Pseudokirchneriella subcapitata) .Therefore the substance is considered to be not classified as per the C&L regulation.