滑坡致环境镉污染的研究  

An Investigation on the Cadmium Pollution Induced by Landslide

作　　者：唐耀远 刘长庚 孙振球[1,2] 

机构地区：[1]湖南省劳动卫生职业病防治研究所 [2]湖南医科大学

出　　处：《铁道劳动安全卫生与环保》1998年第4期260-263,共4页Railway Occupational Safety Health & Environmental Protection

摘　　要：调查发现山体滑坡引起天然水镉污染，源水镉的含量为０．５７～３．８８ｍｇ／Ｌ，下游水体、鱼类、土壤、农作物受到严重污染，人群健康受到镉危害。水镉污染稀释迁移规律曲线拟合方程呈双曲线，土壤和大米含量均高于对照区，血镉、尿镉和尿β２－ＭＧ水平与对照区比较明显升高，人群镉摄入量与尿镉排泄量呈正相关关系，血、尿镉和尿β２－ＭＧ三项指标间的二联指标阳性率明显高于对照区。The adverse effects of cadmium polluted natural water induced by landslide were studied. The results showed that the cadmium (Cd) concentrations of the polluted water increased to 0.57￣3.88 mg/L and that of soil and rice also increased. The imitation and curvilinear equation told a dual curve relationship between the Cd concentration of water and its distance of lower river from the polluted source. The results also demonstrated that the Cd levels of the local residents' serum and urine were higher as well as that of urinary β 2 MG. A positive correlationship between the total of Cd intaken and the urinary Cd was significant. Any of the two penetrances among the serum Cd and urinary Cd and urinary β 2 MG were cooperatively higher than the control. These suggested that landslide accounted for the Cd polluted natural water and local residents were at the risk of Cd.

关 键 词：山体滑坡 污染危害 天然水 镉 污染 

分 类 号：X501[环境科学与工程—环境工程]