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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Link to relevant study record(s)

bioaccumulation in aquatic species: fish
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance has a low potential to cross biological membranes

Description of key information

Taking into account (i) the rapid dissociation of sodium hydrogen sulfite and decomposition of sulfites upon dissolution in environmental solutions, including surface water and sediment porewater, and respective participation in the natural sodium and sulfur cycle, (ii) ubiquitousness of sodium and inorganic sulfur substances in surface water and sediment, and (iii) essentiality of sodium and sulfur in aquatic organisms, sodium hydrogen sulfite is expected to have a low potential for bioaccumulation in aquatic and sediment organisms.

Key value for chemical safety assessment

Additional information