河流对阿哈水库汞迁移转化过程的影响

被引：12

作者：

白薇扬 ^{[1
]}

冯新斌 ^{[2
]}

金志升 ^{[2
]}

孙力 ^{[2
]}

闫海鱼 ^{[2
]}

机构：

[1] 重庆工学院生物工程学院

[2] 中国科学院地球化学研究所环境地球化学国家重点实验室

来源：

矿物学报 | 2007年 / 02期

关键词：

汞; 甲基汞; 水; 阿哈水库; 季节变化;

D O I：

10.16461/j.cnki.1000-4734.2007.02.018

中图分类号：

X524 [湖泊、水库];

学科分类号：

083001 [环境科学];

摘要：

阿哈水库是贵阳市饮用水源,二十世纪九十年代之前阿哈水库流域的煤窑废水污染是其主要污染源;之后,矿山煤窑废水经集中治理,状况得到很大改善,生活水排放成为主要污染源。阿哈水库入库河流总汞浓度为7.1～47.9 ng/L;甲基汞浓度为0.16～2.50 ng/L;活性汞浓度为0.25～2.43 ng/L,且随季节变化明显,枯水期<丰水期。阿哈水库入库河流汞的主要存在形态为颗粒态汞,总汞与颗粒态汞呈显著正相关。阿哈水库唯一的出湖河流小车河中,各种形态的汞均较入湖河流中的汞含量大大减少,这表明水库的沉淀和拦截净化作用相当显著。

引用

页码：218 / 224

页数：7

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