山东北部近岸海域10年环境质量评价

Evaluation on Water Quality in the Last Decade of the Inshore Area of Northern Shandong

根据烟台海洋管区近10年的水质监测资料,分别采用单因子和综合评价两种方法对山东北部近岸海域及四个分海区(莱州湾、龙口、烟台、威海)的水质环境质量进行评价。评价结果表明:评价海域的主要污染为有机污染和石油污染;主要污染物为无机氮、石油类、活性磷。四个分海区中,莱州湾污染最重,威海近岸海域污染最轻。后5年与前5年相比,有机污染有所加重,石油污染得到一定遏制。

According to the monitoring information on water quality of the inshore areas of northern Shandong, using the single pollutant factor and the comprehensive method separately, the paper evaluates the water quality of the area with four inter- linked sea areas (i. e. the Laizhou Bay, Longkou, Yantai and Weihai). It concludes that the evaluated area is polluted mainly by or ganic substance and oil. The main pollutants are inorganic nitrogen, oil and activated phosphorous. Among the four linked sea areas , the pollution level in the Laizhou Bay is the highest and the Weihai area the lowest. And the organic matter pollution in the last five years in the area is higher than that of the first five years. But the oil pollution in the area has been controlled to a certain extent.