Hiroshi Yokota, K. TANABE, Mitsuhiro SEZAKI, Yasuhiro Akiyoshi et al.
Hiroshi Yokota, K. TANABE, Mitsuhiro SEZAKI, Yuto Yano et al.
In March 1997, we analyzed the water of all tubewells used for drinking in Samta village in the Jessore district, Bangladesh. It has been confirmed from the survey that the arsenic contamination in Samta was one of the worst in the Ganges basin including West Bengal, India. 90% of the tubewells had ...
Hiroshi Yokota, Kimiko Tanabe, Mitsuhiro SEZAKI, Yasunori Yano et al.
Hiroshi Yokota, K. TANABE, Mitsuhiro SEZAKI, Shinji Kudo et al.
90% of the tube wells in Samta village, where we have been investigating the causes of the arsenic contamination in groundwater and developing arsenic-free water supply systems since March 1997, had arsenic concentrations above the Bangladesh standard of 0.05mg/1. Tube wells with arsenic concentrati...
Hiroshi Yokota, Mitsuhiro SEZAKI, Kimiko Tanabe, Tatsuo Miyata et al.
Arsenic-contaminated groundwater has been found in 59 districts (as of January 1999) out of a total of 64 districts in Bangladesh where almost all drinking water is supplied from groundwater. The cause of arsenic contamination of groundwater is not clear yet, and it is estimated that about 40 millio...