Download Citation | Risk assessment of soil heavy metals in mining activity areas: a case study in Eastern Shandong Province, China | A total of 237 surface soil samples were collected during May ...

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Source apportionment is critical but remains largely unknown for heavy metals in the soil surrounding black shale mining areas. Herein, the distribution, potential hazards, and sources of heavy metals in the soil around a black shale post-mining site were investigated. The content of Cadmium (Cd) in …

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Health risk assessment of soil heavy metals in a typical mining town in north China based on Monte Carlo simulation coupled with Positive matrix factorization model. Author links open ... Source-specific ecological risk analysis and critical source identification of heavy metals in road dust in Beijing, China. J. Hazard Mater., 388 (2020 ...

This phenomenon has important implications for the prevention and reduction of heavy metal pollution through various effective measures in coal-mining cities in northern China. Keywords: Land use; Mining area; Positive matrix factorization (PMF); Soil heavy metals; Source analysis; Spatial distribution.

An aerial drone photo taken on June 22, 2024 shows the deep-sea heavy-duty mining vehicle "Pioneer II" undergoing a sea trial. China's deep-sea heavy-duty mining vehicle has completed a sea trial at a depth exceeding 4,000 meters, marking a significant breakthrough in the country's deep-sea mineral resource development technology.

Yunnan has always been known as a kingdom of non-ferrous metals, continuous mining, and long-term smelting activities result in high levels of heavy metals in the soils and water, even in the crops grown in those areas (Cheng et al., 2018; Wang et al., 2017).In addition, its soil background concentrations of As, Cd, Cr, and Pb are also higher than those in other …

During 2023, the leading merger and acquisition (M&A) deal within China's mining industry was the acquisition of Shandong Iron and Steel Group Rizhao by Baoshan Iron & Steel. This acquisition deal ...

Pollution risk assessment of heavy metals (Pb, Cr, Cu, Ni, Zn, As) in sediment samples from 68 locations in the Gulf of Edremit, western Turkey, was performed using single and complex indices of ...

We collected street dust from Huainan, a typical coal-mining city in China, to investigate the contamination features and health risks of heavy metals. Concentrations of Co, Cr, Cu, Pb, As, and Sb were generally low to moderate, while pollution levels of Cd and Hg were moderate to high. Concentratio …

The objectives of this paper were: (1) to quantify the content of metal in agricultural soil and vegetables around non-ferrous metals mining and smelting sites, Baiyin, China; (2) to investigate the degree of pollution and the daily intake amount of toxic elements through vegetables; (3) to identify the interactions between soil and vegetable ...

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Companies must state the total discharges and sources of heavy metal pollutants in the environmental impact assessment report. Old, low-capacity companies are prohibited …

The company, which owns a gold deposit in Ivory Coast, accepted a C$57.3 million ($41.8 million) investment from China's Zijin Mining Group for a 9.9% stake in mid-July. Montage said it believes ...

Mechanical Engineering Graduate | Heavy Machine Equipment Enthusiast | China Communication Construction Company · I recently completed my Bachelor's degree in Mechanical Engineering at the Dar es Salaam Institute of Technology, with a strong passion for heavy machine equipment, particularly in underground mining environments. Throughout my …

China is one of the world's top producers and reserve holders of many important minerals and metals, including critical minerals, which makes the Chinese mining industry very economically …

Moreover, the main direction in the ecological restoration and reclamation of industrial and mining wastelands in China is toward agricultural land, so investigation of the heavy metal pollution in the soil and ecological risk assessment are very important. ... The pollution index values of heavy metals in the soil in coal mining areas of Bin ...

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Global mining equipment to reach $117 billion by 2018 ... In "Mining Equipment Market – Global Industry Analysis, Size, Share, Growth, Trends and Forecast, 2012 – 2018," the analysts say the Asia Pacific market was in a commanding position having ...

A uranium mine in northern Guangdong is an important production base of uranium resources in China. Long term mining has damaged the surrounding ecological environment. ... Ji M, Choi J (2020) Heavy metal speciation with prediction model for heavy metal mobility and risk assessment in mine-affected soils. Environ Sci Pollut Res 27:3213–3223 ...

The main objectives of this study were to (1) evaluate soils heavy metal pollution situation in typical Pb/Zn smelting aeras in China; (2) to analyze the source identification …

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Though As and Sb are technically metalloids, we used the term "heavy metal" for all the elements measured in this study. We analyzed concentrations of eight heavy metals (As, Cd, Co, Cr, Cu, Hg, Pb, Sb) according to the HNO 3:HF:HClO 4 (V:V:V=5:10:2) digestion method described by Tang et al. (2016).We analyzed the digested solution using an inductively …

Mining and smelting activities are the primary source of soil heavy metal pollution. China's domestic metal mines have relatively low-grade and are expensive to process. The mining process produces a large amount of toxic and harmful heavy metals into the soil, which causes severe soil heavy metal pollution due to mining activities.

In October 2023, China produced over half of the world's steel. Eight of these nine mining companies in China are included in PwC's 2020 list of the 40 largest mining companies …

The objectives of this research are 1) to evaluate the soil heavy metal pollution levels of mines in China; 2) to assess the health risks posed by these contaminated soils; 3) …

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An aerial drone photo taken on June 22, 2024, shows the deep-sea heavy-duty mining vehicle "Pioneer II" undergoing a sea trial. Credit: China's State Council

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Heavy metals mainly refer to metals and metalloids with a density greater than 5 g/cm 3, such as arsenic (As), cadmium (Cd), chromium (Cr), mercury (Hg), and lead (Pb).Heavy metals not only cause environmental pollution but also cause considerable harm to the human body when they accumulate in body organs and living organisms through the food chain (Sun …

In order to detect pollution status and spatial distribution characteristics of heavy metals in rice samples from hydrometallurgy plant area in No. 721 uranium mining, East China, a total of 44 rice samples were collected to be analyzed for obtaining heavy metal contents and assessing the pollution degrees of Pb Zn Cu Cr Cd As and U elements by using methods of …

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Geochemical characteristics and health risks of heavy metals in agricultural soils and crops from a coal mining area in Anhui province, China. Author links open overlay panel Ying Zhu a 1, Yanfei An b 1, Xingyuan Li a, Li Cheng a ... Soil contamination by heavy metals (HMs) in mining areas is a major issue because of its significant impact on ...

China's domestic metal mines have relatively low-grade and are expensive to process. The mining process produces a large amount of toxic and harmful heavy metals into …