Arsenic cycle - Wikipedia
The arsenic (As) cycle is the biogeochemical cycle of natural and anthropogenic exchanges of arsenic terms through the atmosphere, lithosphere, pedosphere, hydrosphere, and biosphere. Although arsenic is naturally abundant in the Earth's crust, long-term exposure and high concentrations of arsenic can be detrimental to human health.
Arsenic cycling in the Earth’s crust and hydrosphere: interaction ...
2018年11月1日 · Field-based research on naturally occurring arsenic contamination of surface waters and groundwaters and the mechanisms of contamination are reviewed. The distribution of arsenic is strongly related to areas of active plate tectonics, magmatism and associated hydrothermal activity, and high rates of erosion.
Arsenic pollution cycle, toxicity and sustainable remediation ...
2024年1月1日 · Arsenic contamination above the threshold is a severe environmental concern due to the high toxicity of arsenic to humans, plants aquatic animals, microbes etc. Arsenic pollution disturbs its natural biogeochemical cycle and results in arsenic contamination in soil, groundwater, surface water, crops etc. Bibliometric analysis in the present ...
The Global Biogeochemical Cycle of Arsenic - Schlesinger - 2022 ...
This paper compares the human mobilization of arsenic at the Earth's surface to the underlying natural flux of arsenic from rock weathering, volcanoes and other processes. Humans have roughly doubled the emission of As to the atmosphere and substantially increased the As moving in freshwaters to the sea.
The Global Biogeochemical Cycle of Arsenic - Duke University
Using median values for As, the ratio of anthropogenic to natural emissions to the atmosphere (1.57) suggests a human impact on the global As cycle that rivals those for V, Hg and Pb.
The Global Biogeochemical Cycle of Arsenic - ResearchGate
2022年11月23日 · Using median values for As, the ratio of anthropogenic to natural emissions to the atmosphere (1.57) suggests a human impact on the global As cycle that rivals those for V, Hg and Pb. The global...
Anthropogenic arsenic cycles: A research framework and features
2016年12月15日 · A research framework for characterizing anthropogenic arsenic cycles related to intentional uses and resulting from unintentional uses in national or global anthropogenic systems.
Unexpected genetic and microbial diversity for arsenic cycling in …
2023年3月29日 · Cold seeps, where cold hydrocarbon-rich fluid escapes from the seafloor, show strong enrichment of toxic metalloid arsenic (As). The toxicity and mobility of As can be greatly altered by...
Arsenic: Source, Occurrence, Cycle, and Detection
2017年5月25日 · Properties of arsenic and its different species along with organic components that control its biogeochemical cycle are one of the most important aspects in addressing the issue. Several microorganisms play a crucial role in arsenic speciation in both anoxic and oxygen-rich environments.
Arsenic is a minor but ubiquitous element of the Earth’s crust, and some chemical species of this amphoteric elem-ent are volatile and highly soluble in aquatic solution. As a result, arsenic is easily released from the crust into natural waters in conjunction with changes to the chemistry of the aquatic environment. The estimated arsenic ...