• 关键词：河口  底质  污染  富营养化

• 基金项目：国家自然科学基金委员会资助;香港研究资助局项目(No.59890200、No.50109006)

• 刘成
• 1. 国际泥沙研究培训中心,北京 100044; 2. 安徽建筑工业学院, 合肥 230022

• 王兆印
• 1. 国际泥沙研究培训中心,北京 100044; 2. 清华大学水利系,北京 100084

• 何耘
• 中国水利水电科学研究院,北京 100044

• 吴永胜
• 清华大学水利系,北京 100084

• 摘要：2001年6月实地采集了环渤海湾诸河口19处土样, 进行了汞、铜、锌、铅、砷、总氮、总磷和有机质含量分析, 发现环渤海湾诸河口底泥中基本无重金属(及砷)污染, 但与历史资料相比, 近年来重金属含量普遍增加, 特别是铅和锌含量增加幅度较大.大多数河口底泥中的总氮和总磷含量较高, 尤其是海河口附近的河口总氮和总磷含量高达0.14%和0.09%, 通过与水体的交换, 将对水体富营养化产生影响.

• Abstract：Mercury, copper, zinc, lead, arsenic, total nitrogen(TN), total phosphorus(TP) and organic material in the sediments of 19 river mouths around Bohai Bay that sampled in field investigation during June 2001 were guantitatively analyzed. The results showed that there are no heavy metals and arsenic pollutions in the sediments of the river mouths, whereas the concentrations all increased obviously in recent years compared with the historical data, especially those of lead and zinc. TN and TP in the sediments of the most river mouths were rather higher, and the highest of them (0.14% and 0.09%) were found in the vicinity of the Haihe River mouth. The high concentration of them will significantly affect on the waters eutrophication through the pollutants exchange between sediment and overlaying water.

• Key words：river mouth  sediment quality  pollution  eutrophication

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