Spatial and temporal variations of groundwater arsenic in South and Southeast Asia

S Fendorf, HA Michael, A Van Geen - Science, 2010 - science.org
Over the past few decades, groundwater wells installed in rural areas throughout the major
river basins draining the Himalayas have become the main source of drinking water for tens …

Arsenic uptake, accumulation and toxicity in rice plants: possible remedies for its detoxification: a review

HF Bakhat, Z Zia, S Fahad, S Abbas… - … Science and Pollution …, 2017 - Springer
Arsenic (As) is a toxic metalloid. Serious concerns have been raised in literature owing to its
potential toxicity towards living beings. The metalloid causes various water-and food-borne …

The river–groundwater interface as a hotspot for arsenic release

I Wallis, H Prommer, M Berg, AJ Siade, J Sun… - Nature …, 2020 - nature.com
Geogenic groundwater arsenic (As) contamination is pervasive in many aquifers in south
and southeast Asia. It is feared that recent increases in groundwater abstractions could …

Arsenic release from flooded paddy soils is influenced by speciation, Eh, pH, and iron dissolution

N Yamaguchi, T Nakamura, D Dong, Y Takahashi… - Chemosphere, 2011 - Elsevier
Arsenic (As) is highly mobilized when paddy soil is flooded, causing increased uptake of As
by rice. We investigated factors controlling soil-to-solution partitioning of As under anaerobic …

Arsenic, microbes and contaminated aquifers

RS Oremland, JF Stolz - Trends in microbiology, 2005 - cell.com
The health of tens of millions of people world-wide is at risk from drinking arsenic-
contaminated well water. In most cases this arsenic occurs naturally within the sub-surface …

Fast transformation of iron oxyhydroxides by the catalytic action of aqueous Fe (II)

HD Pedersen, D Postma, R Jakobsen… - … et Cosmochimica Acta, 2005 - Elsevier
Iron oxides may undergo structural transformations when entering an anoxic environment.
These transformations were investigated using the isotopic exchange between aqueous Fe …

Arsenic contamination in Bangladesh—an overview

MF Hossain - Agriculture, ecosystems & environment, 2006 - Elsevier
Bangladesh is currently facing a serious threat to public health, with 85 million people at risk
from arsenic (As) in drinking water and in food crops. In Bangladesh, the groundwater As …

Release of arsenic associated with the reduction and transformation of iron oxides

HD Pedersen, D Postma, R Jakobsen - Geochimica et Cosmochimica Acta, 2006 - Elsevier
The behaviour of trace amounts of arsenate coprecipitated with ferrihydrite, lepidocrocite
and goethite was studied during reductive dissolution and phase transformation of the iron …

Arsenic in groundwater of the Red River floodplain, Vietnam: controlling geochemical processes and reactive transport modeling

D Postma, F Larsen, NTM Hue, MT Duc, PH Viet… - … et Cosmochimica Acta, 2007 - Elsevier
The mobilization of arsenic (As) to the groundwater was studied in a shallow Holocene
aquifer on the Red River flood plain near Hanoi, Vietnam. The groundwater chemistry was …

Arsenic contamination of Bangladesh aquifers exacerbated by clay layers

I Mihajlov, MRH Mozumder, BC Bostick, M Stute… - Nature …, 2020 - nature.com
Confining clay layers typically protect groundwater aquifers against downward intrusion of
contaminants. In the context of groundwater arsenic in Bangladesh, we challenge this notion …