恒河流域地下水As中毒的特征及其对中国区域生态地球化学评价的启示

Groundwater arsenic poisoning of the Ganges drainage basin and its lesson to regional ecological geochemical assessment in China

摘要: 恒河流域地下水As中毒事件始于20世纪80年代。通过对恒河流域地下水As中毒例案的时空变、生态效应和成因的分析,指出中国正在开展的区域生态地球化学评价应从恒河流域As中毒事件中吸取教训,尤其应关注中国长江流域发现的Cd异常带。沿江各省应有全局观念,把长江流域作为一个整体,开展Cd异常的区域生态地球化学评价。

Abstract: Groundwater arsenic poisoning in the Ganges drainage basin was found in the 1980s. Through a case study of the time-space evolution,ecological effects and causes of arsenic poisoning in the Ganges drainage basin,the authors point out that the regional ecological geochemical assessment now being carried out in China should learn a lesson from arsenic poisoning in the Ganges drainage basin,and especially we should pay attention to the Cd anomaly distribution along the Yangtze River,China. The relevant provinces along the Yangtze River should be considered as a whole in regional ecological geochemical assessment on Cd anomalies.