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Contamination of sediments in Varna Lake and Varna Bay

机译：瓦尔纳湖和瓦尔纳湾沉积物的污染

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Varna Bay is one of the hot spots along the Black Sea coastal zone. Its ecological state is strongly influenced by the connection with the Varna Lake. Along the lake coast are located many sources of pollution such as rivers, ports, chemical industry, WWTPs. The shipping is another pressure on the environment. The study was carried out in the western part of the Varna Lake and Varna Bay. The following parameters: heavy metals, polichlorinated biphenyls, chlororganic pesticides, phenols, petroleum hydrocarbons were analysed in sediments. The high content of the last one is indicative for an extremely unfavourable long-year exploitation of the lake as a water route. The metals concentration in lakes sediments shows the influence of anthropogenic inputs. Comparative analysis of the sediments shows higher concentrations of contaminants in Varna Lake, and near the ports. As a consequence of the worsened state of the bottom a very poor benthic community characterizes a part of the investigated area in the lake.
机译：瓦尔纳湾沿黑海海岸带的热点之一。它的生态状况的强烈与瓦尔纳湖连接的影响。沿着湖边沿岸位于许多污染源，如河流，港口，化工，污水处理厂。航运是对环境的另一种压力。这项研究是在瓦尔纳湖和瓦尔纳湾西部进行。以下参数：重金属，polichlorinated联苯，有机氯杀虫剂，酚，石油烃沉积物进行分析。最后一个含量高，预示着一个极其不利的长期开采一年湖作为水路线。金属浓度在湖泊沉积物节目人为输入的影响。的沉积物显示出更高的浓度在瓦尔纳湖污染物，和靠近端口的比较分析。随着底部的恶化状态的结果非常差的底栖生物群落特征在湖中调查区域的一部分。

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