Jessica Dittmar, Andreas Voegelin, Linda C. Roberts, Stephan J. Hug et al.
Arsenic-rich groundwater from shallow tube wells is widely used for the irrigation of boro rice in Bangladesh and West Bengal. In the long term this may lead to the accumulation of As in paddy soils and potentially have adverse effects on rice yield and quality. In the companion article in this issu...
Anke Neumann, Rälf Kaegi, Andreas Voegelin, Abul Hussam et al.
The main arsenic mitigation measures in Bangladesh, well-switching and deep tube wells, have reduced As exposure, but water treatment is important where As-free water is not available. Zero-valent iron (ZVI) based SONO household filters, developed in Bangladesh, remove As by corrosion of locally ava...
Linda C. Roberts, Stephan J. Hug, Jessica Dittmar, Andreas Voegelin et al.
Linda C. Roberts, Stephan J. Hug, Jessica Dittmar, Andreas Voegelin et al.
Around 38% of the area of Bangladesh is irrigated with groundwater to grow dry season crops, most importantly boro rice. Due to high As concentrations in many groundwaters, over 1000 tons of As are thus transferred to arable soils each year, creating a potential risk for future food production. We s...
Jessica Dittmar, Andreas Voegelin, Felix Maurer, Linda C. Roberts et al.
Groundwater rich in arsenic (As) is extensively used for dry season boro rice cultivation in Bangladesh, leading to long-term As accumulation in soils. This may result in increasing levels of As in rice straw and grain, and eventually, in decreasing rice yields due to As phytotoxicity. In this study...
Jakob Frommer, Andreas Voegelin, Jessica Dittmar, Matthew A. Marcus et al.
The spatial distribution and speciation of iron (Fe), manganese (Mn) and arsenic (As) around rice roots grown in an As‐affected paddy field in Bangladesh were investigated on soil sampled after rice harvest. Synchrotron micro‐X‐ray fluorescence spectrometry on soil thin sections revealed that roots ...
Jessica Dittmar, Andreas Voegelin, Linda C. Roberts, Stephan J. Hug et al.
Shallow groundwater, often rich in arsenic (As), is widely used for irrigation of dry season boro rice in Bangladesh. In the long term, this may lead to increasing As contents in rice paddy soils, which threatens rice yields, food quality, and human health. The objective of this study was to quantif...
Linda C. Roberts, Stephan J. Hug, Andreas Voegelin, Jessica Dittmar et al.
In Bangladesh, irrigation of dry season rice (boro) with arsenic-contaminated groundwater is leading to increased As levels in soils and rice, and to concerns about As-induced yield reduction. Arsenic concentrations and speciation in soil porewater are strongly influenced by redox conditions, and th...
Linda C. Roberts, Stephan J. Hug, Jessica Dittmar, Andreas Voegelin et al.
Linda C. Roberts, Stephan J. Hug, Jessica Dittmar, Andreas Voegelin et al.