Spatial and temporal trends of PCBs (polychlorinated biphenyls) in mussel from Galician coast (1998-2008)

被引：33
作者：
Carro, N. [1 ]
Garcia, I. [1 ]
Ignacio, M. [1 ]
Mouteira, A. [1 ]
机构：
[1] INTECMAR, Inst Tecnol Control Medio Marino Galicia, Vilagarcia De Arousa 36611, Spain
来源：
ENVIRONMENT INTERNATIONAL | 2010年 / 36卷 / 08期
关键词：
PCBs; Mussel samples; Galician Rias; Spatial and temporal trends; ORGANOCHLORINE PESTICIDES; BALTIC SEA; FISH; SEDIMENTS; POLLUTION; PCDD/FS; METALS; SPAIN; PCDFS;
D O I：
10.1016/j.envint.2010.04.002
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
PCBs were determined in wild mussel samples collected in several points from Galician Rias (Rias de Ferrol, A Coruna, Muros, Vigo and Arousa), Spain, during the period 1998-2008. The concentration levels of Sigma PCBs ranged from 0.62 to 107.5 ng g(-1), w.w. The isomer concentrations in the Mytilus galloprovincialis were in the order hexachlorobiphenyls>pentachlorobiphenyls>tetrachlorbiphenyls>trichlorobiphenyls. CBs 153, 138 and 101 congeners were the most abundant in these samples. Two biological parameters, fat content and condition index (Cl), have also been investigated for these mussel samples. Univariate techniques confirm that levels of some compounds. CBs 28, 52, 138, 153, and 180, presented significant relation (p < 0.05) with biological parameters. Multivariate techniques of data exploration such as Principal Component Analysis (PCA) showed that spatial trends of PCB levels appeared in the studied samples. Rias de Ferrol and A Coruna presented the highest levels of PCBs and Ria de Arousa the lowest levels of these compounds. In general, temporal trends (linear regressions) showed a decrease of PCB levels along the period 1998-2008. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：873 / 879
页数：7
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