Partitioning of marine antifoulants in the marine environment.

S. D.W. Comber*, G. Franklin, M. J. Gardner, C. D. Watts, A. B.A. Boxall, J. Howcroft

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The partitioning behaviour of the organic biocides, Irgarol 1051 and diuron and two inorganic biocides (copper and zinc) was investigated using six sediments of differing physico-chemical properties collected from unimpacted sites along the south coast of England. The kinetics of sorption and equilibrium partitioning between the sediments and seawater were investigated over a period of 20 days. Resulting organic carbon/water partition coefficients (log Koc) were related to suspended sediment concentration and ranged from 2.28 to 5.20 for diuron; and from 2.41 to 4.89 for Irgarol 1051. Sediment/water partition coefficients (log Kp) for copper and zinc varied from 2.46 to 5.08 l/kg and from 2.49 to 4.97 l/kg, respectively. Kinetic data indicated that there were significant interactions between the dissolved and particulate phases at the start of the experiments, just after mixing. This is thought to be a result of redistribution of organic carbon between the two phases.
Original languageEnglish
Pages (from-to)61-71
Number of pages0
JournalSci Total Environ
Volume286
Issue number0
DOIs
Publication statusPublished - 8 Mar 2002

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