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  • Cadmium Statistics and Information - USGS

    Cadmium, a soft, malleable, ductile, bluish-white metal, was discovered in Germany in 1817, and Germany remained the only important producer for 100 years. Currently, a large percentage of global cadmium metal production takes place in Asia. Cadmium is generally recovered as a byproduct from zinc concentrates.

  • Shangba Village Cadmium and Lead Pollution in Wengyuan ...

    Shangba Village Cadmium and Lead Pollution in Wengyuan, Guangdong, China. ... Zhuang et al., (2009) 'Health risk from heavy metals via consumption of food crops in the vicinity of Dabaoshan mine, South China', Science of the Total Environment 407: 1551–1561. [click to view] 4. A. Chen et al. (2007) 'Well water contaminated by acidic mine ...

  • China Wrestles with the Toxic Aftermath of Rare Earth Mining

    China has been a major source of rare earth metals used in high-tech products, from smartphones to wind turbines. As cleanup of these mining sites begins, experts argue that global companies that have benefited from access to these metals should help foot the bill.

  • Cobalt mining for lithium ion batteries has a high human ...

    Sep 30, 2016  About 90 percent of China’s cobalt originates in Congo, where Chinese firms dominate the mining industry. ... and cadmium and uranium levels four times as high. The levels were even higher in ...

  • Cadmium Mines In Canada The Diggings™

    Cadmium Mines In Canada Total Prospects Occurrences Plants Producers. British Columbia 9 - - 3 6 Manitoba 2 - - 1 1 New Brunswick 1 - - - 1 Newfoundland And Labrador 2 - - - 2 Northwest Territories 1 1 - - - Nova Scotia 1 1 - - - Ontario 3 - - - 3 Quebec 3 1 - - 2 Yukon 2 1 - - 1

  • Cadmium Mines In China P9dd5

    Toxic China: Heavy metal cadmium openly dumped into rivers by mining companies. Elevated levels of cadmium were reportedly detected as far south as Liuzhou, which is more than 130 kilometers, or more than 80 miles, downstream from the Guangxi Jinhe Mining. View Details Send Enquiry China coal mine approvals surge despite climate pledges Reuters

  • Cadmium in China - WHO

    The cadmium-polluted sector of the Dayu irrigation area (about 5500hectares) accounts for halfthe total area polluted with cadmium in the whole of China. Of samples of unpolished rice from Dayu County that were analysed, 42.4% had cadmium levels >0.4mg/kg, and 16.7% had levels >1 mg/kg. The hygienic standard for rice in China is <0.2mg/kg ...

  • The Challenges and Solutions for Cadmium-contaminated Rice ...

    The Challenges and Solutions for Cadmium-contaminated Rice in China: A Critical Review. Hu Y(1), Cheng H(2), Tao S(3). Author information: (1)School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China.

  • The Challenges and Solutions for Cadmium-contaminated Rice ...

    The Challenges and Solutions for Cadmium-contaminated Rice in China: A Critical Review. Hu Y(1), Cheng H(2), Tao S(3). Author information: (1)School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China.

  • Dietary cadmium exposure assessment among the Chinese ...

    Cadmium, a toxic heavy metal, is widely present in food. It has been reported that chronic cadmium exposure is associated with kidney disease, osteoporosis, cardiovascular disease and cancer. The aim of this study was to assess the dietary cadmium exposure and potential health risk in different age-sex groups of the Chinese population (children aged 4–11 years, young people aged 12–17 ...

  • Cadmium resources, reserves and production-Metalpedia

    China now has the biggest share of cadmium reserves as a single country. Distribution of cadmium reserves in China; Cadmium reserves mainly distributed in central, eastern and southwestern region in China. Yunnan province is one of the biggest cadmium-producing regions in China, where the environment is polluted seriously by cadmium.

  • China drafts new rules to curb mining pollution - Reuters

    Aug 09, 2016  China plans to raise environmental standards in its highly-polluting mining sector, according to a policy draft circulated by the Ministry of Environmental Protection.

  • Status of cadmium accumulation in agricultural soils ...

    Soil Cd concentrations in South China were higher than other regions. Ecological risks resulting from Cd contamination were low. Soil Cd concentrations accumulated gradually from 1981 to 2016. Cd mainly came from anthropogenic activities, such as mining, smelting, sewage irrigation, and fertilization.

  • Navigating the Muddy Waters of China’s Cadmium Rice Paddies

    HUNAN, Central China — The 16 acres of rice paddies that Liu Jian works have sustained him since he was born, as they have his parents, his siblings, and his own 21-year-old son. But since last year, the 48-year-old’s tract of land has sat unseeded and will remain so for another two and a half years.

  • Children as young as seven mining cobalt used in ...

    Jan 18, 2016  Children as young as seven are working in perilous conditions in the Democratic Republic of the Congo to mine cobalt that ends up in smartphones, cars and

  • Cadmium - Wikipedia

    Cadmium is a chemical element with the symbol Cd and atomic number 48. This soft, silvery-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury.Like zinc, it demonstrates oxidation state +2 in most of its compounds, and like mercury, it has a lower melting point than the transition metals in groups 3 through 11. ...

  • Cadmium Minerals Education Coalition

    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.

  • The most neglected threat to public health in China is ...

    Cadmium is released during the smelting of ores of iron, lead and copper. It is a heavy metal. If ingested, the liver and kidneys cannot get rid of it from the body, so it accumulates, causing ...

  • British Columbia Cadmium Mines The Diggings™

    Filter 9 cadmium mines by commodity, disposition, development status, and record type in British Columbia. Quick Facts Aluminum , Antimony , Arsenic , Asbestos , and Barium-Barite mines

  • Cadmium contamination in soils and crops in four mining ...

    The Yangjiazhangzi Mine, a Mo Cu porphyry-skarn ore, is located about 23 km north-west of Xingcheng town, Liaoning Province. Its geographical coordinates are longitude 120°34′ E and latitude 40°47′ N . The mine closed in 1999 after being in operation over 100 years. It has been the largest Mo Cu deposit in China from 1950s to 1980s.

  • The World's Biggest Zinc Producers

    The state-controlled Chinese metals producer China Minmetals Corp. is China’s biggest and most international metal ore mining company is headquartered in Beijing. With mines in Australia, South America, Africa and other parts of Asia, China Minmetals is involved in the production of virtually every metal, including copper, aluminum , tungsten ...

  • Cadmium poisoning - Wikipedia

    Cadmium is a naturally occurring toxic metal with common exposure in industrial workplaces, plant soils, and from smoking. Due to its low permissible exposure in humans, overexposure may occur even in situations where trace quantities of cadmium are found. Cadmium is used extensively in electroplating, although the nature of the operation does not generally lead to overexposure.

  • British Columbia Cadmium Mines The Diggings™

    Filter 9 cadmium mines by commodity, disposition, development status, and record type in British Columbia. Quick Facts Aluminum , Antimony , Arsenic , Asbestos , and Barium-Barite mines

  • Cadmium contamination in soils and crops in four mining ...

    The Yangjiazhangzi Mine, a Mo Cu porphyry-skarn ore, is located about 23 km north-west of Xingcheng town, Liaoning Province. Its geographical coordinates are longitude 120°34′ E and latitude 40°47′ N . The mine closed in 1999 after being in operation over 100 years. It has been the largest Mo Cu deposit in China from 1950s to 1980s.

  • The World's Biggest Zinc Producers

    The state-controlled Chinese metals producer China Minmetals Corp. is China’s biggest and most international metal ore mining company is headquartered in Beijing. With mines in Australia, South America, Africa and other parts of Asia, China Minmetals is involved in the production of virtually every metal, including copper, aluminum , tungsten ...

  • Cadmium poisoning - Wikipedia

    Cadmium is a naturally occurring toxic metal with common exposure in industrial workplaces, plant soils, and from smoking. Due to its low permissible exposure in humans, overexposure may occur even in situations where trace quantities of cadmium are found. Cadmium is used extensively in electroplating, although the nature of the operation does not generally lead to overexposure.

  • cadmium mines in asia - strzelnica-starachowice.pl

    cadmium zinc ore mining manufacturer in Shanghai, China cadmium zinc ore mining is manufactured from Shanghai ,It (cadmium zinc ore mining) is the main , cadmium ore crushercadmium mining Cadmium mining,cadmium , need iron ore feldspar crusher sales xsm need iron ore need iron ore xsm excellent mining ltd china mainland cadmium .

  • Blood Cadmium Concentration of Residents Living near ...

    The difference in blood cadmium concentration of the abandoned mining area, even for the same term used, as a result of the amount of cadmium due to various factors may be considered, such as exposure to local residents in the different sources according to the actual amount of cadmium in abandoned mines, geographical location and surrounding ...

  • In China’s Heartland, A Toxic Trail Leads from Factories ...

    Jul 07, 2014  Long known as China’s granary, Hunan Province has been a major rice producer for the nation’s growing and increasingly urban population. But toxic pollution from Hunan’s mines and heavy metal plants has contaminated large tracts of its once-fertile farmland and put China

  • 'Cadmium Rice' Is China's Latest Food Scandal - The New ...

    May 20, 2013  As a major battery producer, China is a major consumer of cadmium. “Cadmium in rice usually comes from the soil where it grows, and the soil was polluted by mining and chemical wastes,” Fan Zhihong, a food safety expert at China Agricultural

  • Rare earth mining in China: the bleak social and ...

    Mar 20, 2014  China began mining the minerals on a mass scale in the mid 1980s, and after nearly two decades of lax environmental regulation has only recently begun to address their noxious legacy.

  • A review of soil cadmium contamination in China including ...

    Sep 12, 2015  Cadmium (Cd) is one of the most serious soil contaminants in China, and it poses an increasing risk to human health as large amounts of Cd are emitted into the environment. However, knowledge about soil Cd concentrations and the human health risks of these concentrations at a national scale is limited. In this study, we conducted a review of 190 articles about soil Cd concentrations

  • Safety and Health Topics Cadmium Occupational Safety ...

    China, South Korea, and Japan are the leading producers of cadmium in the world, followed by North America. Cadmium and its compounds are highly toxic and exposure to this metal is known to cause cancer and targets the body's cardiovascular, renal, gastrointestinal, neurological, reproductive, and respiratory systems.

  • Cadmium-Tainted Rice Discovered in Southern China - The ...

    May 22, 2013  Officials said the tainted rice came from the adjacent Hunan Province, an area where expanding factories, smelters and mines jostle with paddy fields. Cadmium

  • China’s Toxic Rice Problem - The Epoch Times

    For decades, high levels of cadmium and other toxic heavy metals have polluted China’s waterways. Through irrigation they have ended up in village rice paddies. Villagers complain of bone pains.

  • Concentration and Distribution of Cadmium in Coals of China

    Cadmium is considered an important toxicant of major environmental and occupational concern. It can contaminate water, soil, and the atmosphere through coal mining, beneficiation, combustion, etc. This paper is based on the published literature, especially those data reported during the recent 10 years, including 2999 individual samples from 116 coalfields or mines in 26 provinces in China.

  • Rare earth mining in China: the bleak social and ...

    Mar 20, 2014  China began mining the minerals on a mass scale in the mid 1980s, and after nearly two decades of lax environmental regulation has only recently begun to address their noxious legacy.

  • A review of soil cadmium contamination in China including ...

    Sep 12, 2015  Cadmium (Cd) is one of the most serious soil contaminants in China, and it poses an increasing risk to human health as large amounts of Cd are emitted into the environment. However, knowledge about soil Cd concentrations and the human health risks of these concentrations at a national scale is limited. In this study, we conducted a review of 190 articles about soil Cd concentrations

  • Safety and Health Topics Cadmium Occupational Safety ...

    China, South Korea, and Japan are the leading producers of cadmium in the world, followed by North America. Cadmium and its compounds are highly toxic and exposure to this metal is known to cause cancer and targets the body's cardiovascular, renal, gastrointestinal, neurological, reproductive, and respiratory systems.

  • Cadmium-Tainted Rice Discovered in Southern China - The ...

    May 22, 2013  Officials said the tainted rice came from the adjacent Hunan Province, an area where expanding factories, smelters and mines jostle with paddy fields. Cadmium

  • China’s Toxic Rice Problem - The Epoch Times

    For decades, high levels of cadmium and other toxic heavy metals have polluted China’s waterways. Through irrigation they have ended up in village rice paddies. Villagers complain of bone pains.

  • Concentration and Distribution of Cadmium in Coals of China

    Cadmium is considered an important toxicant of major environmental and occupational concern. It can contaminate water, soil, and the atmosphere through coal mining, beneficiation, combustion, etc. This paper is based on the published literature, especially those data reported during the recent 10 years, including 2999 individual samples from 116 coalfields or mines in 26 provinces in China.

  • 4 Top Vanadium-mining Countries INN

    China. Mine production: 43,000 MT. China was the world’s top vanadium producer in 2017 with output of 43,000 MT. That’s down from the 45,000 MT it put out the previous year.

  • China's Cadmium-Tainted Rice Scandal - Asia Sentinel

    May 23, 2013  Although the investigations haven't been completed, the cadmium is believed to have entered the crop through polluted soil. China's heavy metal mining, in which tailings often haven't been quarantined, allowing water runoff into lakes and rivers, has

  • The polluted legacy of China's largest rice-growing ...

    May 30, 2014  The raw materials for indium and cadmium refining are usually the tailings and slag from lead and zinc mines (cadmium is an impurity of lead and zinc ores). The accident investigation team determined that the company’s refining activities were directly responsible for Liuyang’s cadmium pollution incident. Polluted legacy

  • Australian Resources Cadmium MiningLink - The largest ...

    China is the largest producer of cadmium having produced more than 5,600 tonnes in 2010. Cadmium Used by Van Gogh, Edison and Junger Cadmium is present throughout the environment and is naturally occurring in both the Earth's water and crust. It was first isolated in Germany in

  • Exposures and risks of arsenic, cadmium, lead, and mercury ...

    The World Health Organization has expressed concern about arsenic, cadmium, lead, and mercury as potentially harmful to human health. As su ... Spatial analysis, source identification and risk assessment of heavy metals in a coal mining area in Henan, Central China.

  • Around China's metal mines, villages struggle with a toxic ...

    Dec 29, 2019  In Guangxi, a balmy southern region that has some of China’s most concentrated mineral deposits, large tracts of farmland lay wasted by runoff carrying cadmium and lead.

  • Cadmium poisoning from China factory kills 26, says report ...

    Jul 31, 2013  At least 26 villagers have died from cadmium poisoning and hundreds more fallen ill since 2009 near a disused factory in central China, local media said Wednesday, underscoring the country's ...

  • Assessment of cadmium (Cd) concentration in arable soil in ...

    Cadmium (Cd) concentration in arable soil has drawn broad public attention due to its direct effect on Cd concentration in food. However, there have been few studies of surveying Cd accumulation on the national scale in China. This paper collected 486 studies of Cd concentrations in Chinese arable soil. The results showed that the average Cd concentration was 0.27 mg/kg, higher than its ...