Biogeochemical cycle of arsenic
WebThe biogeochemical reaction of As included oxidation, reduction, methylation, and demethylation, which is closely associated with microbial metabolisms. The study of the geochemical behavior of arsenic in mining areas and the microbial remediation of arsenic pollution have great potential and are hot spots for the prevention and remediation of ... WebSpecial Issue Information. Arsenic contaminations in groundwater and soils widely exist in varieties of environments and severely affect approximately hundreds of millions of people. Many factors, such as chemical and biological reactions, hydrogeological conditions, as well as anthropogenic activities drive the geochemical cycle of arsenic.
Biogeochemical cycle of arsenic
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WebFeb 1, 2014 · Apart from this, the microbial transformation of inorganic arsenic to volatile derivatives has known to play an important role in the biogeochemical cycling of arsenic [79]. ... WebOct 22, 2024 · The microbial metabolism of arsenic plays a prominent role in governing the biogeochemical cycle of arsenic. Although diverse microbes are known to be involved …
WebThe Global Biogeochemical Cycle of Arsenic William H. Schlesinger1 , Emily M. Klein1 , and Avner Vengosh1 1Earth and Climate Sciences Division, The Nicholas School of the Environment, Duke University, Durham, NC, USA Key Points: • The human flux of As to the atmosphere has doubled that from natural sources • The human mobilization of As from WebArsenic is responsible for the contamination of water supplies in various parts of the world and poses a major risk to human health. Its toxicity and bioavailability depend on its …
WebMay 30, 2024 · Furthermore, though the complete arsenic biogeochemical cycle has been detected in the environment , the relative contributions of genes encoding detoxification and metabolism remain unknown . A global, biogeographic perspective of environmental arsenic-related genes would improve understanding of their ecology. This information … WebDifferent microbial biotransformation processes such as oxidation, reduction, methylation, and demethylation of arsenicals have fundamental roles in As biogeochemical cycle …
WebIn this study, the biogeochemical cycle of arsenic in the Bosporus and the Golden Horn, which have a two-layer stratified structure, was investigated and the dominant feature in …
WebIn this study, the biogeochemical cycle of arsenic in the Bosporus and the Golden Horn, which have a two-layer stratified structure, was investigated and the dominant feature in this cycle was observed to be the anthropogenic (domestic + industrial) activities. On the contrary, in the rural areas which are far from human activities, such as ... songs about collaboration and teamworkhttp://chem.ouc.edu.cn/2024/0306/c28915a425559/page.htm smalley sheds wabassoWebThe biogeochemical cycle of arsenic (As), a metalloid widely distributed in the lithosphere, encompasses both natural and anthropic processes [1,2,3,4]. Due to human activities, arsenic can reach molar range concentrations in gold mining effluents , where other toxic pollutants such as cyanide and heavy metals are also present. songs about coming together as a communitysongs about coming back to lifeWebArsenic (As) is a trace element in the global environment with toxicity to both humans and ecosystem. This study characterizes China’s historical anthropogenic arsenic cycles (AACs) from 1990 to 2010. Key findings include the following: (1) the scale of China’s AACs grew significantly during the studied period, making China the biggest miner, producer, … songs about coming of ageWebIn this study, the biogeochemical cycle of arsenic in the Bosporus and the Golden Horn, which have a two-layer stratified structure, was investigated and the dominant feature in … songs about coming back togetherWebOct 1, 2009 · The biogeochemical cycle. Arsenic is a ubiquitous element of both natural and anthropogenic origin. It is present in the atmosphere, the pedosphere, the hydrosphere and the biosphere. A very exhaustive review on these aspects has been presented by Mandal and Suzuki [6]. The biogeochemical cycle involves several physico-chemical … songs about commercialism