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Study on Distribution、Speciation and Geochemical Processes of heavy metals in Fujian Province

Abstract

海洋中重金属具有来源广、毒性大、潜伏期长且能沿食物链富集等特点,一直是海洋环境研究的焦点。本论文以福建近海为研究区域,通过对该海域完整统一的水体、沉积物重金属的调查,研究其分布特征及来源,并结合实验模拟及多年实测数据的拟合,探讨影响其分布的因素以及迁移过程。此外,选择厦门湾表层沉积物为研究对象,分析重金属的形态在其迁移过程中的作用。 主要研究结果如下: 1.基于2006年~2007年间实施的第二次大规模、长时间的全国性近海海洋综合调查与评价(国家“908”专项和福建省“908”专项)的数据资料,发现:①福建近海表层海水重金属含量在夏、冬、春、秋四季均低于国家一类海水水质标准,铜(Cu)、镉...Heavy metals are always one of the focuses in marine environmental researches due to their wide sources, high toxicity and enrichment along food chain. Based on the surveys of seawater and sediment in Fujian Province, the contributions and sources of heavy metals were studied and the influence effects were indicated combined with the experimental simulations and years of measured data. In addition...学位:理学博士院系专业:海洋与环境学院_海洋化学学号:2242007015356

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