arsenic Articles
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Spatial pattern of arsenic contamination in shallow wells of Bangladesh: regional geology and nonlinear dynamics
Since the discovery of large-scale arsenic contamination of groundwater in Bangladesh more than a decade ago, studies related to its spatial characterization have relied on geostatistical approaches and the classical notion of linear stochastic dynamics. This study explores an alternative nonlinear approach, with a motivation to possibly achieve more cost-effective solutions for Bangladesh. It ...
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Understanding social acceptability of arsenic-safe technologies in rural Bangladesh: a user-oriented analysis
Contamination of shallow tube well drinking water by naturally occurring arsenic is a severe societal and human health challenge in Bangladesh. Multiple technological interventions seeking to ameliorate the problem face hurdles in securing social acceptance, i.e. the willingness of users to receive and use a technology. While most papers focus on expert understanding of social acceptability, ...
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Failing arsenic mitigation technology in rural Bangladesh: explaining stagnation in niche formation of the Sono filter
Arsenic contamination of shallow hand pump tube well drinking water in Bangladesh has created opportunities for radical innovations to emerge. One such innovation is the household Sono filter, designed to remove arsenic from water supplies. Applying a strategic niche management approach, and based on interviews, focus groups and a workshop, this article explains the Sono filter's failure to ...
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Study Identifies Arsenic Strategies for Bangladesh
Naturally occurring poison in groundwater is causing public health crisis The nation of Bangladesh, on the Bay of Bengal between Myanmar and India, is not quite the size of Iowa, but it has developed a continent-sized arsenic contamination problem. Because of the nation’s coastal topography, the toxic metalloid occurs naturally in the groundwater that Bangladeshis depend on, and the ...
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Surprising Methane-Arsenic Connection
Researchers have discovered that methane can fuel release of the toxic metalloid from sediment Arsenic toxicity now plagues many surface water and groundwater resources worldwide, with widespread and tragic consequences for public health in countries including Vietnam and Bangladesh. When microorganisms “eat” substances that contain the toxic metalloid, they release it into drinking ...
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Inequitable allocation of deep community wells for reducing arsenic exposure in Bangladesh
Community wells that extend deeper than most private wells are crucial for reducing exposure to groundwater arsenic (As) in rural Bangladesh. This study evaluates the impact on access to safe drinking water of 915 such intermediate (90–150 m) and deep (>150 m) wells across a 180 km2 area where a total of 48,790 tubewells were tested with field kits in 2012–13. Half the shallow private ...
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Groundwater: Low-flow Purging and Sampling
Significant timesavings, improved sample process integrity, quality assurance and minimal quantities of potentially contaminated purge water to manage - are attractive as the focus on groundwater quality sharpens and economics demand best cost-benefit based methods Water has become a vitally important resource. Maintaining its quality and quantity and avoiding pollution are set to be watched ...
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