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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Key value for chemical safety assessment

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Bromide ions would be expected to partition to water rather than soils and sediments in the environment given their high water solubility (ca. 90 g per 100 ml for sodium bromide) and the negative charges on the ions. However, a bioconcentration factor for sodium bromide in aquatic invertebrates has been determined experimentally to be 0.23 (Bartolomé M.C.et al., 2005). In addition, a bioconcentration factor for aquatic organisms has been calculated, giving BCFfish = 1.41 L/kgwet fish (D. Carling, 2007). Given this data,

it is considered that there is minimal risk of bioaccumulation and of secondary poisoning to the aquatic compartment.