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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Description of key information

The value of 8.41 mg (SO3)2-/L is put forward for the environmental classification and effects assessment of sulfite/disulfite compounds.	

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
8.41 mg/L

Additional information

Reliable chronic toxicity data for Daphnia are available for sulfite and dithionite compounds. Respective 21-d NOEC for Daphnia are ≥ 10 mg test item/L, ≥ 8.41 mg/L sulfite equivalents, respectively.

Thus, sulfite and dithionite appear to have a low potential for chronic toxicity to aquatic invertebrates.