Journal ArticleDOI
The Ecology of Arsenic
Ronald S. Oremland,John F. Stolz +1 more
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This work reviews what is known about arsenic-metabolizing bacteria and their potential impact on speciation and mobilization of arsenic in nature and investigates their role in aquifers.Abstract:
Arsenic is a metalloid whose name conjures up images of murder. Nonetheless, certain prokaryotes use arsenic oxyanions for energy generation, either by oxidizing arsenite or by respiring arsenate. These microbes are phylogenetically diverse and occur in a wide range of habitats. Arsenic cycling may take place in the absence of oxygen and can contribute to organic matter oxidation. In aquifers, these microbial reactions may mobilize arsenic from the solid to the aqueous phase, resulting in contaminated drinking water. Here we review what is known about arsenic-metabolizing bacteria and their potential impact on speciation and mobilization of arsenic in nature.read more
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Advanced application of nano-technological and biological processes as well as mitigation options for arsenic removal.
Jyoti Prakash Maity,Chien-Yen Chen,Prosun Bhattacharya,Raju Kumar Sharma,Arslan Ahmad,Sneha Patnaik,Jochen Bundschuh +6 more
TL;DR: Application of hybrid (biological with chemical and physical process) and Best-Available-Technologies (BAT) can be the most effective As removal strategy to remediate As contaminated environments.
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Metatranscriptomic analysis of prokaryotic communities active in sulfur and arsenic cycling in Mono Lake, California, USA.
TL;DR: The data highlight the importance of Thioalkalivibrio to arsenic and sulfur biogeochemistry in Mono Lake and identify new taxa that appear capable of transforming arsenic.
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Methylated and thiolated arsenic species for environmental and health research - A review on synthesis and characterization
William R. Cullen,Qingqing Liu,Xiufen Lu,Anthony McKnight-Whitford,Hanyong Peng,Aleksandra Popowich,Xiaowen Yan,Qi Zhang,Michael Fricke,Hongsui Sun,X. Chris Le +10 more
TL;DR: On the basis of reaction yield, ease of synthesis and purification of product, safety considerations, and the experience, this work recommends a method for the synthesis of each of these arsenic compounds.
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Arsenic accumulation, distribution and source analysis of rice in a typical growing area in north China.
TL;DR: According to the results of Spearman's rank correlation analysis and Principal Component Analysis (PCA), As levels in soil and irrigation water may be important factors influencing As concentration in rice.
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Effective stabilization of arsenic in contaminated soils with biogenic manganese oxide (BMO) materials
Ya-nan Wang,Yiu Fai Tsang,Huawei Wang,Huawei Wang,Yingjie Sun,Yi Song,Xiangliang Pan,Siyi Luo +7 more
TL;DR: Findings suggested that BMO can be considered as a low cost, high effectiveness and environmental friendliness material for the remediation of As contaminated soils.
References
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A review of the source, behaviour and distribution of arsenic in natural waters
TL;DR: The scale of the problem in terms of population exposed to high As concentrations is greatest in the Bengal Basin with more than 40 million people drinking water containing ‘excessive’ As as mentioned in this paper.
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Worldwide Occurrences of Arsenic in Ground Water
TL;DR: Nordstrom et al. as mentioned in this paper argue that human health risks from arsenic in ground water can be minimized by incorporating hydrogeochemical knowledge into water management decisions and by more careful monitoring for arsenic in geologically high-risk areas.
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Arsenic poisoning of Bangladesh groundwater
TL;DR: Sedimentological study of the Ganges alluvial sediments shows that the arsenic derives from the reductive dissolution of arsenic-rich iron oxyhydroxides, which in turn are derived from weathering of base-metal sulphides.
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