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1. Introduction. Cadmium has been used for Ni–Cd batteries, pigment, cadmium alloy, as a stabilizer for polyvinyl chloride (PVC), and for coatings and plating, etc., for many decades (Institute of Metal Mines, Japan Mining Industry Association, 2009).The demand for cadmium has gradually decreased since 1995 due to its toxicity …
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We characterized the lability and bioaccessibility of Zn, Pb, and Cd in size-fractionated mine waste at the Tar Creek Superfund Site (Oklahoma) to assess the potential for metal transport, exposure, and subsequent bioavailability. Bulk mine waste samples contained elevated Zn (9100 +/- 2500 ppm), Pb …
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A large amount of lead, zinc, and related elements, such as cadmium, have been released into the environment due to mineral processing activities and have impacted water resources, soils, vegetables, and crops. In some areas, this pollution is hazardous to human health. This article reviews studies published in the past 10 years (2000-2009), on ...
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This chapter contains sections titled: Introduction. Geogenic Occurrence and Sources of Soil Contamination. Chemical Behavior in Soils. Plant Accumulation of Soil Cadmium and Zinc. Risk Implications for Cadmium in Soil Amendments. Plant Uptake of Cadmium and Zinc in Relation to Food-Chain Cadmium Risk. Food-Chain Zinc Issues.
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We evaluated the potential release of Zn and Cd (two of the most common inorganic contaminants) and the factors regulating their solubility and speciation in two heavily contaminated soils representative of a Zn-mining area.
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Cadmium: Cadmium is a soft, bluish-white metal with the chemical symbol "Cd" and atomic number 48. It is a transition metal and is relatively rare in the Earth's crust. Occurrence: Cadmium is commonly found as an impurity in zinc, lead, and copper ores, rather than occurring as a primary mineral.
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Heavy metal contamination in soil caused by human activities, such as mining and industrial activities, ... In this review, we will discuss how plants respond at the cellular and molecular level to high exposures of zinc (Zn) and cadmium (Cd), two metals commonly found in the environment with toxic effects on plants and humans. In addition, …
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Mining and smelting are important economic activities. However, mining-related industries are also some of the largest sources of environmental pollution from heavy metals. China is one of the largest producers and consumers of lead and zinc in the world. A large amount of lead, zinc, and related elements, such as cadmium, have been …
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We evaluated the potential release of Zn and Cd (two of the most common inorganic contaminants) and the factors regulating their solubility and speciation in two heavily contaminated soils...
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Relation to Mining Cadmium rarely appears in nature and is most commonly sourced by its removal from zinc metals during the refining process. Cadmium is therefore produced in countries where zinc is refined, not necessarily in the countries where zinc ore is mined. China, Japan, and Korea are the world's largest producers, followed by Mexico, the …
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An exploratory study of the area surrounding a historical Pb-Zn mining and smelting area in Zawar, India, detected significant contamination of the terrestrial environment by heavy metals. Soils (n=87) were analyzed for pH, EC, total organic matter (TOM), Pb, Zn, Mn, and Cd levels. The statistical a …
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Environmental exposure to cadmium was a serious problem in Toyama Prefecture (Japan), starting from 1912, where many people consumed rice grown in Cd-contaminated irrigation water. Cadmium was released into Jinzu River basin by a zinc mine, which was sued for the damage [40,41]. It was the outbreak of Itai-Itai disease, …
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Lead, Zinc and Cadmium Accumulation, and Associated Health Risks, in Maize Grown near the Kabwe Mine in Zambia in Response to Organic and Inorganic Soil …
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Sedum alfredii Hance is a newly reported zinc (Zn) and cadmium (Cd) hyperaccumulator native to China. In this study, four populations of S. alfredii were collected from Yejiwei (YJW), Jinchuantang (JCT) and Qiaokou (QK) lead (Pb)/Zn mines located in Hunan Province as well as Quzhou (QZ) Pb/Zn mine located in Zhejiang Province for exploring …
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Transfer of lead, zinc and cadmium from mine tailings to wheat (Triticum aestivum) in carbonated Mediterranean (Northern Tunisia) soils. Salma Boussen. 2013, Geoderma. See Full PDF Download PDF. See Full PDF Download PDF. Related Papers. Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology.
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Keywords: Lead mining, lead cadmium and zinc speciation, bioavailability, MINTEQ model. CSBErten-Unal 22/11/02 10:56 am Page 37. water quality criteria based on total metals will be unnecessarily stringent for one type of environment and underprotective for other environments having different
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During the Cold War, the United States devoted great attention to the possibility that an enemy power might attack with biologic weapons. To prepare against such an attack, the U.S. Army sponsored a variety of tests during the 1950s and 1960s to understand how biologic weapons disperse in various environments. As part of the tests, the Army …
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Cadmium has many chemical similarities to zinc and is often recovered from the primary zinc ore sphalerite. The single most important use of cadmium is in the production of nickel-cadmium (Ni-Cad) batteries. Relation to Mining. Cadmium rarely appears in nature and is most commonly sourced by its removal from zinc metals during the refining process.
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Mining nd smelting of Pb, Zn and Cd ores have caused widespread soil contamination in many countries. In locations with severe soil contamination, and strongly acidic soil or mine waste, ecosystems are devastated. Research has shown that An phytotoxicity, Pb-induced phosphate deficiency, Cd risk through uptake by rice or …
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This article reviews studies published in the past 10 years on the environmental and human health consequences of lead/zinc mineral exploitation in China and concludes that lead (Pb) and cadmium (Cd) are the main pollutants and are associated with human health effects. Mining and smelting are important economic …
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We evaluated the potential release of Zn and Cd (two of the most common inorganic contaminants) and the factors regulating their solubility and speciation in two heavily …
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An exploratory study of the area surrounding a historical Pb–Zn mining and smelting area in Zawar, India, detected significant contamination of the terrestrial environment by heavy metals. Soils (n = 87) were analyzed for pH, EC, total organic matter (TOM), Pb, Zn, Mn, and Cd levels. The statistical analysis indicated that the frequency …
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1. Introduction. Cadmium (Cd) is a highly toxic heavy metal that occurs naturally in environmental media and as a contaminant emitted mainly from industrial sources, such as mining and metal smelting (Cui et al., 2016; Wlostowski et al., 2016; Wu et al., 2019).Generally, Cd is scarce in the earth's crust as a pure metal, and is principally …
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Risk of cadmium, lead and zinc exposure from consumption of vegetables produced in areas with mining and smelting past. Małgorzata Ćwieląg-Drabek, Agata …
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Concentrations of zinc, copper, and cadmium were determined in soil and liver, kidney, bone and stomach contents of deer mice (Peromyscus maniculatus) from two sites near an abandoned mine and one control site, on Vancouver Island, British Columbia, Canada. Soil concentrations of copper were signifi …
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Cadmium is released into the atmosphere in two main ways: through natural events like the weathering of rocks, forest fires or volcanoes; or human activity like mining and manufacturing. "Cadmium exposure predominantly takes place in areas where cadmium-containing products are produced or recycled, such as zinc mining, …
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A total of 2300 tons of cadmium are estimated to have been lost to the air in the United States during 1968, with levels ranging from 0.01 to 0.37 micrograms/cu m in 17 of 58 cities surveyed. Covington, Kentucky, a manufacturing center for brass and bronze products, shows the highest yearly mean concentration (0.05 micrograms/cu m).
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In a site polluted by phosphorite mining on the coast of Togo, the highest metal concentration observed in fish were cadmium (1.68 µg g −1) in Chloroscombrus chrysurus, lead (8.49µg g −1) in Galeoides decadactylus, and zinc and iron (1.48 µg g −1 and 2.99 µg g −1, respectively) in Ilisha africana .
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Characterization of Zinc, Lead, and Cadmium in Mine Waste: Implications for Transport, Exposure, and Bioavailability | Environmental Science & Technology. Cite This:Environ. …
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Metal-contaminated mining soils pose serious environmental and health risks if not properly managed, especially in mountainous areas, which are more susceptible to perturbation. Currently, climate change is leading to more frequent and intense rain events, which cause flooding episodes, thereby altering soil redox equilibria and …
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