云南金顶超大型铅锌矿区镉的水地球化学研究

被引:9
作者
李航 [1 ]
肖唐付 [1 ]
双燕 [2 ]
何立斌 [1 ]
宁增平 [1 ]
孙嘉龙 [1 ]
彭景权 [1 ]
李大华 [2 ]
朱长生 [2 ]
机构
[1] 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
[2] 重庆地质矿产研究院
关键词
Cd; 环境影响; 水地球化学; 金顶铅锌矿;
D O I
10.19700/j.0379-1726.2007.06.009
中图分类号
P618.4 [有色金属]; P641.42 [];
学科分类号
摘要
云南金顶铅锌矿是镉(Cd)元素富集区,采矿活动导致Cd释放出来进入地表环境造成Cd污染。矿区水体中出现较高含量的Cd,高出天然河流中Cd含量的50~100倍。矿区架崖山、北厂和跑马坪等采矿区水体中Cd浓度范围在15~30μg/L之间。矿区水体中Cd含量水平表现为:矿山浅层地下水>矿山溪流水>江河水。研究结果表明,矿区江下游河段水体明显受Cd污染,其中水体中Cd的平均含量为15.7μg/L,悬浮物中Cd含量为49.3mg/kg,沉积物中Cd含量为203.7mg/kg。矿区载Cd岩石和矿物的自然风化是造成矿区水环境中Cd污染的直接原因。
引用
收藏
页码:612 / 620
页数:9
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