Unresolved Complex Mixtures of Aromatic Hydrocarbons: Thousands of Overlooked Persistent, Bioaccumulative, and Toxic Contaminants in Mussels
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- 作者：Andy M. Booth ; Paul A. Sutton ; C. Anthony Lewis ; Alastair C. Lewis ; Alan Scarlett ; Wing Chau ; John Widdows ; Steven J. Rowland
- 刊名：Environmental Science & Technology
- 出版年：2007
- 出版时间：January 15, 2007
- 年：2007
- 卷：41
- 期：2
- 页码：457 - 464
- 全文大小：397K
- 年卷期：v.41,no.2(January 15, 2007)
- ISSN：1520-5851
文摘
Comprehensive two-dimensional gas chromatography-time-of-flight-mass-spectrometry can be used to resolveand identify individual petroleum-derived hydrocarbonsin unresolved complex mixtures (UCMs), such as thoseaccumulated by mussels (Mytilus edulis). Mussels exhibitinga range of scope for growth values were collected fromsites around the UK coast. Tissue extracts from musselsexhibiting impaired health contained large amounts of aromatichydrocarbon UCMs compared to the extracts fromhealthy mussels. The UCMs (up to 125 
g g-1 dry tissue)contained thousands of previously unidentified branched alkylhomologues of known aromatic hydrocarbons such asbranched alkylbenzenes (BABs), tetralins (BATs), and indanesand indenes (BINs). The toxicity of few such alkylbranched compounds has been investigated previously,but here we show that a commercial mixture of BABs (C12-C14) is toxic to mussels in laboratory tests (11-57 g g-1dry tissue), reducing feeding rate by up to 40% in 72 h. Thus,some, if not all aromatic UCMs, apparently comprisepotent mixtures of persistent, bioaccumulative and toxiccompounds which have been overlooked previously.
g g-1 dry tissue)contained thousands of previously unidentified branched alkylhomologues of known aromatic hydrocarbons such asbranched alkylbenzenes (BABs), tetralins (BATs), and indanesand indenes (BINs). The toxicity of few such alkylbranched compounds has been investigated previously,but here we show that a commercial mixture of BABs (C12-C14) is toxic to mussels in laboratory tests (11-57 g g-1dry tissue), reducing feeding rate by up to 40% in 72 h. Thus,some, if not all aromatic UCMs, apparently comprisepotent mixtures of persistent, bioaccumulative and toxiccompounds which have been overlooked previously.