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We provide an overview of arsenic (As) from gold mining spoils, tailings disposal sites, and mining degraded soils and propose sustainable soil remediation …
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It is well known that microorganisms can dissolve different minerals and use them as sources of nutrients and energy. The majority of rock minerals are rich in vital elements (e.g., P, Fe, S, Mg and Mo), but some may also contain toxic metals or metalloids, like arsenic. The toxicity of arsenic is disclosed after the dissolution of the mineral, …
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Arsenic poisoning can occur when you take in high levels of arsenic. Drinking contaminated water causes most cases. Symptoms of immediate arsenic poisoning include nausea, vomiting and diarrhea. Long-term exposure can cause skin changes such as darkening and lesions. Treatment may include the use of a chelating agent or bowel …
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Arsenic sources to the biosphere associated with gold mining include waste soil and rocks, residual water from ore concentrations, roasting of some types of gold-containing ores to remove sulfur and sulfur oxides, and bacterially-enhanced leaching. Arsenic concentrations near gold mining operations were elevated in abiotic materials and biota: maximum total …
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Ultra-enriched arsenic (As) concentrations >30% occur at an abandoned artisanal mine in an urban park in San Diego, California, presenting a complex risk to the …
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Arsenic (As)-contaminated gold mine waste is a global problem and poses a significant risk to the ecosystem and community (e.g., carcinogenic, toxicity). Arsenic …
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The aim of this work is to evaluate the routes and effects of arsenic contamination in environmental compartments (air, water, and soil) and environmental …
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The studied mining area is placed 2 km from the south of Barruecopardo village, in the north-west of the Salamanca province (Spain), where the Barruecopardo mine is situated.During the period 1912–1983, this mine exploited the largest tungsten deposit in Spain. This exploitation took place in two phases, in which two open pits of …
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Published: March 21, 2012 8:23pm EDT. Arsenic in contaminated soil can be absorbed and have long-term health consequences. hoyasmeg. Exposure to arsenic in soil and gold mining waste may have ...
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The results of a study on the spatial distribution of arsenic in topsoil (0–5 cm) over the K. Mitrovica region, Kosovo, are reported. The investigated region (300 km2) was covered by a sampling grid of 1.4 km × 1.4 km. In …
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December 10, 2020. Study co-author Joshua Fisher (lower right) collecting water samples from treated mine tailings. Photo courtesy Joshua Fisher. A new study examines how …
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Women involved in mining activities and those of low socioeconomic status had increased odds of higher T-Hg by 70% (p < 0.001) and 10% (p < 0.05), respectively. Arsenic and mercury concentrations among women in non-ASGM areas suggest exposure sources beyond ASGM activities that need to be identified.
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News. Arsenic is a naturally occurring element, but long-term exposure can cause cancer in people. There has been a substantial amount of research done to address arsenic in groundwater and drinking-water supplies around the country. The USGS studies local and national sources of arsenic to help health officials better manage our water …
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Arsenic Factsheet. Arsenic, a naturally occurring element, can combine with either inorganic or organic substances to form many different compounds. Inorganic arsenic compounds are in soils, sediments, and groundwater. These compounds occur either naturally, or as a result of mining, ore smelting, or when using arsenic for industrial …
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Arsenic contamination in industrial and mining effluents has always been a serious concern. Recently, nano-sized iron particles have been proven effective in sorptive removal of arsenic, because of …
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The combined pollution of arsenic (As) and cadmium (Cd) are quite common in the polymetallic mining areas located in southern China. In the present study, field experiments were established for the purpose of exploring a simultaneous remediation strategy of rice variety-water management-contaminant immobilization on the As and Cd …
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red or swollen skin. skin changes, such as new warts or lesions. abdominal pain. nausea and vomiting. diarrhea. abnormal heart rhythm. muscle cramps. tingling of fingers and toes. Long-term ...
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1. Introduction. Mining and smelting activities release large amounts of heavy metals into the environment, which has received global attention (Ran et al., 2021; Mensah et al., 2022).China is the largest producer and consumer of heavy metals in the world, and has a long history of mining and smelting activities (Yang et al., 2018).Particularly, …
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Atmospheric arsenic emissions from copper smelting represent the largest contribution of arsenic from the mining and metals industry and have been the focus of pollution control technologies and increasinglystringent regulations. Arsenic can also be leached out of some metal ores by … See more
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The antimony and arsenic concentrations in the main drainage increased significantly in the vicinity of the mine waste seep and in another minor tributary flowing from south of the mine disturbance. However, antimony and, to a lesser extent, arsenic concentrations continue to increase downstream of the disturbed mining area, reaching …
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Abstract. The geologic profile of the western United States lends itself to naturally elevated levels of arsenic and uranium in the groundwater and can be aggravated by mining. The Navajo Nation, located in the American Southwest, is the largest contiguous Native American Nation and has over a 100-year legacy of hard rock mining.
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Foods produced on soils impacted by antimony (Sb) mining activities are a potential health risk due to plant uptake of the contaminant metalloids (Sb) and arsenic (As). Here we report for the first time the chemical speciation of Sb in soil and porewater of flooded paddy soil, impacted by active Sb mining, and its effect on uptake and speciation in rice plants …
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The techniques used in arsenic mining depend on the type of mineral and the location of the deposit. Open-pit and underground mining methods are commonly employed, with the specific extraction method determined by the ore body's geology. The geologic layers where arsenic is found include sulfide mineral deposits and arsenic-rich pyrite veins.
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Arsenic is a natural component of the earth's crust and is widely distributed throughout the environment in the air, water and land. It is highly toxic in its inorganic form. People are exposed to elevated levels of inorganic arsenic through drinking contaminated water, using contaminated water in food preparation and irrigation of food crops ...
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Site description. The arsenic mining and processing sites are located in north-west Georgia. More specific, there are three sites called Tsana 1, Tsana 2 and Tsana 3, that …
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1. Introduction. Realgar (As 4 S 4) is an arsenic-sulphur compound that has an As content of 70%, and is generated under reducing conditions.It is commonly found in low-temperature hydrothermal veins, hot-spring deposits and volcanic residues and is often associated with gold-, silver- or lead-bearing ores (Bullen et al., 2003).High-grade realgar …
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Arsenic Mine Site, Town of Kent, Putnam County, NY. The Agency for Toxic Substances and Disease Registry (ATSDR) and New York State Department of Health (NYSDOH), through ATSDR's Cooperative Agreement Program, evaluated soil samples collected in 2017 and 2018 by the United States Environmental Protection Agency (USEPA).
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Arsenic contamination of mine and metallurgical waters has long been recognized as a global problem. More stringent guidelines, based on demonstration of potential toxicity to humans and ecological receptors, have motivated regulators and operators to address both legacy sites and existing or future operational discharges to …
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Arsenic (As) concentrations and fractionations were investigated for control and mining-affected soils in Spain, using chemical extraction, column leaching, microbial and cultivation studies.
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The purpose of this briefing is to provide a general overview about the occurrences of arsenic, its economic uses, and its environmental and health impacts. SME through this discussion presents information to inform and engage in meaningful dialogue about safety and best practices, including recycling, utilized by the mining industry in ...
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