title: Testing groundwater for arsenic in Bangladesh before installing a well.
abstract: Profiles of groundwater and sediment properties were collected at three sites in Bangladesh with an inexpensive sampling device that is deployed by modifying the local manual drilling method. Dissolved As concentrations in the groundwater samples ranging from 5 to 600 microg/L between 5 and 50 m depth closely matched vertical profiles from nearby nests of monitoring wells. In combination with a field kit, the device provides a means of targeting aquifers for the installation of tube wells that meet the drinking water standard for As. The device is also a useful research tool for unraveling the relationships between the As content of groundwater and the complex structure of flood plain and deltaic environments throughout South Asia.
authors.affiliation: Lamont-Doherty Earth Observatory of Columbia University, Route 9W, Palisades, New York 10964, USA. avangeen@ldeo.columbia.edu
authors.forename: A
authors.initials: A
authors.lastname: van Geen
authors.forename: T
authors.initials: T
authors.lastname: Protus
authors.forename: Z
authors.initials: Z
authors.lastname: Cheng
authors.forename: A
authors.initials: A
authors.lastname: Horneman
authors.forename: A A
authors.initials: AA
authors.lastname: Seddique
authors.forename: M A
authors.initials: MA
authors.lastname: Hoque
authors.forename: K M
authors.initials: KM
authors.lastname: Ahmed
mesh_terms: D001151:Arsenic / Q000032:analysis*; D001459:Bangladesh; D004784:Environmental Monitoring / Q000295:instrumentation*; D012989:Soil Pollutants / Q000032:analysis*; D012995:Solubility; D014872:Water Movements; D014873:Water Pollutants / Q000032:analysis*; D014881:Water Supply
chemical_list: D012989:Soil Pollutants; D014873:Water Pollutants; D001151:Arsenic