Arsenic (As) king of poison, is an ubiquitous element in nature and the last 1000 years, humans have lived with this toxic element and the next 1000 years, As will be also with them. In 1986, first As in Chinese water was reported and in 1990, acquit problem of As in groundwater was reported in the Inner Mongolia, autonomous region of China, although across the world there are over one hundred million people slowly being poisoned by the availability of As in drinking water source. HAB groundwater data show high concentration of As include Fe and Mn have been released under reduction condition. Hydrogeochemical evidences reveal substantial reduction of As(Ⅴ) to As(Ⅲ), NO<,3> to NH<,4> as well as SO4<,4><2> reduction also taking place. High reducing conditions in the shallow aquifers are envisaged as the principal mechanisms of As mobilisation in groundwaters of the Huhhot region of Inner Mongolia.
P. Bhattacharya Fei Shi A. B. Mukherjee G. Jacks O. Sracek Z. M. Xie J. Bundshuh
KTH-International Groundwater Arsenic Research Group, Dept of land and water Resources, KTH, SE-100 Environmental Sciences, Dept of Biological and Environmental Sciences, Helsinki University, P. O. Bo Institute of Geological Sciences, Faculty of Science, Masaryk University, Kotlarska2, 611 37 Brno, C Department of Resources/Soil Sciences, Zhejiang University, Hangzhou 310029, P. R. China Instituto Costarricense de Electricidad, Apartado Postal 10032, 1000 San Jose Costa Rica