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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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No bioaccumulation data are available on insoluble salts of neodymium but literature data provide information on the soluble salt neodymium nitrate (see Section 5.3.1).  A BCF value of 634 was recorded after 29 days, with BCF values reducing over time.  The half-life for internal organs was calculated as 6.30 days.  Neodymium nitrate is therefore eliminated from fish and does not readily bio-concentrate.  By analogy to neodymium nitrate, dineodymium tricarbonate is unlikely to bioaccumulate, and furthermore being poorly water soluble it is expected to be less bioavailable than the soluble salt tested.

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