Junji Akai, Kaoru Izumi, Haruo Fukuhara, Harue Masuda et al.
Ashraf Ali Seddique, Harue Masuda, Muneki Mitamura, Keiji Shinoda et al.
Ashraf Ali Seddique, Harue Masuda, Ryo Anma, Prosun Bhattacharya et al.
In order to better understand the encroachment of seawater into the groundwater system a total 115 groundwater samples were collected in an area of ∼7 km2 in Cox's Bazar paleobeach and its vicinity, from different types of tubewells, which included hand pump fitted bore wells ( 100 m depth) during J...
Takaaki Itai, Harue Masuda, Ashraf Ali Seddique, Muneki Mitamura et al.
Muneki Mitamura, Harue Masuda, Takaaki Itai, Takaharu Minowa et al.
Continuous sediment core samples and groundwater were collected in the northern part of Sonargaon, central Bangladesh, to document the hydrogeological constraints on As‐contaminated aquifers. The study area spans the alluvial plain of the Old Brahmaputra River and a Pleistocene terrace, the Madhupur...
Harue Masuda, Keiji Shinoda, Takamoto Okudaira, Yoshio Takahashi et al.
Three basic minerals, biotite, chlorite and amphibole, were mineralogically and chemically examined to specify primary host phase(s) of As in the aquifer sediments and verify the formation mechanism of As contaminated groundwater of Sonargaon, Bangladesh, where the highest As contaminated groundwate...
Shinji Nakaya, Haruyasu Natsume, Harue Masuda, Muneki Mitamura et al.
Ashraf Ali Seddique, Harue Masuda, Muneki Mitamura, Keiji Shinoda et al.
Ashraf Ali Seddique, Harue Masuda, Ashraful Hoque
Ashraf Ali Seddique, Yoshiaki Kon, Ryo Anma, Harue Masuda et al.
To explore the influence of radioactive heavy minerals on thorium (Th) and uranium (U) contamination in groundwater, we performed geochemical and mineralogical investigations of core samples (from the ground surface to 18.9 m depth) from a paleobeach area in Cox's Bazar, southeastern Bangladesh. Geo...
Harue Masuda, KATSUKI OKABAYASHI, Shunsuke Maeda, Ashraf Ali Seddique et al.
The mineralogy and chemistry of aquifer sediments of As-contaminated groundwater in Sonargaon, Bangladesh were analyzed to identify the host phases of As and to understand release mechanism of As into the groundwater. Sequential chemical extraction revealed that the As was mostly fixed in silicate(s...
Ashraf Ali Seddique, Harue Masuda, Muneki Mitamura, Keiji Shinoda et al.
Ashraf Ali Seddique, Harue Masuda, Yoriko Yokoo, Prosun Bhattacharya et al.
Not Provided, Ashraf Ali Seddique, Prosun Bhattacharya, Yoshiaki Kon et al.
Harue Masuda, Norio Hirai, A.H.M. Selim Reza
Groundwaters and aquifer sediments from Chundpur and its surroundings, along the downstream Meghna River at the meeting with Padma River, Bangladesh, were analyzed to document the mechanism of As contamination. The As was released in association with infiltration of surface water into the shallow gr...