Unlü Selma, Topçuoğlu Sayhan, Alpar Bedri, Kirbaşoğlu Ciğdem, Yilmaz Yusuf Ziya
Institute of Marine Sciences and Management, Istanbul University, Vefa, Istanbul, Turkey.
Environ Monit Assess. 2008 Sep;144(1-3):169-78. doi: 10.1007/s10661-007-9986-6. Epub 2007 Sep 28.
Sediment quality data provide essential information for evaluating ambient environmental quality conditions. An evaluation is presented of heavy metal pollution, on the basis of statistical analysis of metal concentrations from the sediments of the Gulf of Gemlik, southeastern Marmara Sea, Turkey, which has been subject to high levels of pollution. The ranges for heavy metal concentrations (Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn) at the <63 microm grain size were higher when compared with those obtained from >63 microm fractions. Not only large industrialized seaports but also resort areas throughout the Gulf are flagged as hotspots for elevated concentrations, generally higher compared to those from the other Turkish marine environment. The highest concentrations of Cr, Pb and Ni were measured in the outer part of the Gulf, while the highest concentrations of Cu were documented offshore the main rivers. While the concentrations of Cr, Fe, Mn and Ni in some stations approach the severe effect level given in various sediment quality guidelines, the concentrations of the most human-related metals (Cd and Zn) in the mussels collected from the Port Mudanya were higher than the acceptable values for human consumption set by various healthy organizations.
沉积物质量数据为评估环境质量状况提供了重要信息。基于对土耳其马尔马拉海东南部盖姆利克湾沉积物中金属浓度的统计分析，对重金属污染进行了评估，该海湾已遭受高度污染。与从大于63微米粒径部分获得的浓度范围相比，小于63微米粒径部分的重金属浓度（钴、铬、铜、铁、锰、镍、铅和锌）范围更高。不仅大型工业化海港，而且整个海湾的度假区都被标记为高浓度热点地区，总体上高于土耳其其他海洋环境中的浓度。在海湾外部测得铬、铅和镍的最高浓度，而在主要河流入海口附近记录到铜的最高浓度。虽然一些站点的铬、铁、锰和镍浓度接近各种沉积物质量指南中给出的严重影响水平，但从穆达尼亚港采集的贻贝中与人类关系最密切的金属（镉和锌）浓度高于各健康组织设定的人类消费可接受值。
