| 摘要: |
| 本研究分析了2013年10月东山湾八尺门海域表层海水和沉积物中重金属Zn、Cu、Pb、Cd含量，并基于多种方法进行评价。结果显示，研究海域表层海水中重金属含量符合《海水水质标准》第一类标准，重金属污染指数法评价显示污染风险较低。沉积物中Pb、Cd、Zn含量均符合《海洋沉积物质量》第一类标准，整体污染水平较低；潜在生态风险指数大小顺序为：Cd>Cu>Pb>Zn，沉积物重金属污染整体情况良好，但个别站位的Cd的潜在生态风险指数超过40，应加以关注；地累积指数评价法显示总体污染情况较轻，其地累积指数平均值大小依次为Zn>Cu>Pb>Cd。纵观1990年至2013年的研究结果，东山湾水体中重金属含量总体呈先升高后降低的趋势；与同期相比，东山湾水体中的重金属含量与福建其他海域相差不大，而沉积物中重金属含量比其他海域稍高。 |
| 关键词: 海洋化学 水体 沉积物 重金属 东山湾 |
| DOI：10.3969/J.ISSN.2095-4972.2022.02.010 |
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| 基金项目:国家海洋公益性行业科研专项经费资助项目（201305043-4）；福建省省属公益类科研院所基本科研专项资助项目（闽海渔科2013R001-8 |
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| Evaluation of heavy metal pollution in water and sediments in Bachimen sea area of Dongshan Bay, Fujian Province |
| CAI Zhenzhen,ZHENG Shenghua,YANG Miaofeng,CHEN Caizhen,JIANG Shuangcheng,XI Yingyu,LUO Donglian |
| (Xiamen Ocean Vocational College, Xiamen 361102, China;Fisheries Research Institute of Fujian, Fujian Provincial Key Laboratory of Marine Bio-breeding and High-value Utilization,
Xiamen 361013, China; Fujian Marine Biological Resources Development and Utilization Collaborative Innovation
Center, Xiamen 361102, China) |
| Abstract: |
| Heavy metals (Zn, Cu, Pb and Cd) were analyzed in surface seawater and sediments collected from Bachimen sea area of Dongshan Bay in October 2013, and then potential pollution risks were assessed. Our results indicated that heavy metals in seawater was qualified as GradeⅠof national Sea Water Quality Standard, and that the pollution level was relatively low based on the heavy metal pollution index method. Additionally, the contents of Pb, Cd and Zn were relatively low assessed as GradeⅠof national standard Marine Sediment Quality. The potential ecological risk index was higher in sequence of Cd, Cu, Pb and Zn. Heavy metal pollution in sediments was limited in general, but the potential ecological risk index of Cd in some stations exceeded 40, to which the attention should be paid. Heavy metal pollutions were at the low level in general based on the geo-accumulation index which arranged in order of Zn, Cu, Pb and Cd. It was found that the contents of heavy metals in seawater in Dongshan Bay increased firstly and then decreased from 1990 to 2013 according to literature data. In the same period, the contents of heavy metals in the seawater were similar compared with other sea areas of Fujian Province, but the contents of heavy metals in the sediments were higher in general. |
| Key words: marine chemistry water sediments heavy metal Dongshan Bay |
