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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The ErC50 and NOEC (72h) for o-Toluenesulfonamide were 170 and 7.7 mg/L, based on measured concentrations.

Key value for chemical safety assessment

EC50 for freshwater algae:
170 mg/L
EC10 or NOEC for freshwater algae:
7.7 mg/L

Additional information

No valid studies are available for p-Toluenesulfonamide. Read across is performed with o-Toleunesulfonamide (CAS 88 -19 -7).

One study, valid without restrictions, is available with Pseudokirchneriella subcapitata (OECD SIDS, 2002) performed according to OECD 201 guideline. It was performed as a static test with chemical analysis.

The ErC50 and NOEC (72h) for o-Toluenesulfonamide were 170 and 7.7 mg/L, based on measured concentrations.