Acute toxicities of five commonly used antifouling booster biocides to selected subtropical and cosmopolitan marine species

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)1147-1151
Journal / PublicationMarine Pollution Bulletin
Volume62
Issue number5
Online published21 Mar 2011
Publication statusPublished - May 2011

Abstract

Since 1990s, various booster biocides have been increasingly used as substitutes of organotins. However, knowledge about their toxicities on tropical/sub-tropical marine species is significantly lacking. This study comprehensively investigated the acute toxicities of copper, tributyltin (TBT), and five commonly used booster biocides including Irgarol, diuron, zinc pyrithione (ZnPT), copper pyrithione (CuPT) and chlorothalonil on the growth or survival of 12 marine species in which eight of them are native species of subtropical Hong Kong. We found that Irgarol was more toxic than TBT on the growth of autotrophic species. The toxicity of CuPT was comparable to that of TBT on almost all test species, while it showed higher toxicity than TBT on medaka fish larvae. As the usage of these biocides is expected to further increase worldwide, accurate assessments of their ecological risks are required for better informed decision on their management. This study provided useful datasets for such purposes. © 2011 Elsevier Ltd.

Research Area(s)

  • Antifouling biocide, Chlorothalonil, Ecotoxicology, Irgarol, Pyrithione, Tributyltin

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