Impacts of compound properties and sediment characteristics on the sorption behaviour of pharmaceuticals in aquatic systems

[Display omitted] •Sorption behaviour of five pharmaceuticals in ten sediment types was assessed.•Existing sorption models were unable to predict actual sorption behaviour in sediments.•Pharmaceuticals sorption behaviour was found to be correlated to sediment properties.•New approaches to model sorp...

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Bibliographic Details
Published in:Journal of hazardous materials 2016-11, Vol.317, p.198-209
Main Authors: Al-Khazrajy, Omar S.A., Boxall, Alistair B.A.
Format: Article
Language:English
Subjects:
Distribution coefficient (Kd)
Modelling
Pharmaceuticals
Sediment characteristics
Sorption isotherms
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Summary:[Display omitted] •Sorption behaviour of five pharmaceuticals in ten sediment types was assessed.•Existing sorption models were unable to predict actual sorption behaviour in sediments.•Pharmaceuticals sorption behaviour was found to be correlated to sediment properties.•New approaches to model sorption are needed for environmental risk assessments. Sorption is a key factor in determining the persistence, attenuation and bioavailability of sediment-associated contaminants. However, our understanding of the sorption behaviour of pharmaceuticals in sediments is poor. In this study, we investigated the sorption behaviour of a diverse set of pharmaceuticals in a range sediment types. Sorption affinity of pharmaceuticals for all sediments was found to increase in the order mefenamic acid
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2016.05.065