RECETOX, Research Centre for Environmental Chemistry and Ecotoxicology, Masaryk University, Kamenice 3/126, 625 00 Brno, Czech Republic; Facultad de Ciencias, Universidad Católica Santísima Concepción, Alonso de Ribera 2850, P.C. 407 01 29 Concepción, Chile; Department of Physical, Earth and Environmental Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy.
Center for Environmental Sciences EULA-Chile, Universidad de Concepción, Barrio Universitario s/n, Casilla 160-C, Concepción, Chile.
Mar Pollut Bull. 2014 Feb 15;79(1-2):338-41. doi: 10.1016/j.marpolbul.2013.11.031. Epub 2013 Dec 25.
Superficial sediments from Lenga estuary in the VIII region of central Chile were analysed for Polychlorinated Biphenyls (PCBs) and Hexachlorobenzene (HCB). Organic carbon (OC) analysis was also performed and the statistical correlations (Pearson correlations) between compounds were also tested. Results showed the total PCB concentrations (ng g(-)(1)d.w.) fluctuated from ∼ 20 to 10,000. These levels are higher than those reported in other coastal sediments of the world. The PCB profile was dominated by middle to highly chlorinated congeners (6-Cl=40% and 7-Cl=30%). HCB concentrations (ng g(-)(1)d.w.), were lower than the PCBs and, fluctuated between 1 (at L1) and 870 (at L4). OC values ranged from 1% (L1) to 7% (L4) showing a significant positive correlations between OC% and PCBs (r=0.86; p<0.05) and for HCB (r=0.71). These results are an important contribution to knowledge of levels of POPs levels in coastal Chilean environments.
对智利中 VIII 地区伦加河口的表层沉积物进行了多氯联苯 (PCBs) 和六氯苯 (HCB) 分析。还进行了有机碳 (OC) 分析，并测试了化合物之间的统计相关性 (皮尔逊相关性)。结果表明，总 PCB 浓度（ng g(-)(1)d.w.）波动范围为 20 到 10,000。这些水平高于世界其他沿海沉积物的报告。PCB 分布以中至高氯同系物为主（6-Cl=40%，7-Cl=30%）。HCB 浓度（ng g(-)(1)d.w.）低于 PCBs，波动范围在 1（在 L1）到 870（在 L4）之间。OC 值范围从 1%（L1）到 7%（L4），OC%与 PCBs（r=0.86；p<0.05）和 HCB（r=0.71）之间存在显著正相关。这些结果是对智利沿海环境中持久性有机污染物 (POPs) 水平知识的重要贡献。
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