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Health risk assessment of heavy metals in soils and crops in a mining area(Au-Ag-Cutrona-oil et al.) of the Nanyang Basin, Henan Province, China

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China Geology 2023年第4期6卷 567-579页

作者： Qiu-yao Dong Hao-tian Wen Pan Wang Chao Song Shu-ya Lai Zhen-jing Yang Yuan-yi Zhao Ming-jiang Yan Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuang 050061China Key Laboratory of Quaternary Chronology and Hydro-Environmental Evolution China Geological SurveyMinistry of Natural ResourcesShijiazhuang 050061China School of Earth Sciences and Resources China University of Geosciences(Beijing)Beijing 100083China School of Earth Sciences Hebei GEO UniversityShijiazhuang 050031China Institute of Mineral Resources Chinese Academy of Geological SciencesBeijing 100037China

Heavy metal distribution in mining areas has always been a hot research topic due to the special environment of these areas. This study aims to explore the impact of heavy metal pollution on soils and crops in the study area, ensure the safety of local crops and the health of local residents, and provide a basis for the subsequent environmental restoration and the prevention and control of environmental pollution. Based on the analysis of the heavy metal concentrations in local soils and crops, the study investigated the spatial distribution, pollution degrees, and potential ecological risks of heavy metals in the farmland of a mining area in the southeastern Nanyang Basin, Henan province, China explored the sources of heavy metals and assessed the health risks caused by crop intake. The results of this study are as follows. The root soils of crops in the study area suffered heavy metal pollution to varying degrees. The degree of heavy metal pollution in maize fields is higher than that in wheat fields, and both types of fields suffer the most severe Cd pollution. Moreover, the root soils of different crops suffer compound *** root soils in the maize fields suffer severe compound pollution at some sampling positions, whose distribution is similar to that of the mining area. Cd poses the highest potential ecological risks among all heavy metals, and the study area mainly suffers low and moderate comprehensive potential ecological risks. The principal component analysis(PCA) shows that the distribution of Zn, Cd, Pb, and As in soils of the study area is mainly affected by anthropogenic factors such as local mining activities;the distribution of Cr and Ni is primarily controlled by the local geological background;the distribution of Hg is mainly affected by local vehicle exhaust emissions, and the distribution of Cu is influenced by both human activities and the geological background. Different cereal crops in the study area are polluted with heavy metals dom

关键词： Heavy metal Zn-Cd-Pb pollution Cr-Ni pollution As pollution Natural ecosystem Health risk assessment Adult-children health risk Ecological risk index(ERI) Ecological geological engineering mining activity

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Impact of mining Activities upon Environment in Panzhihua Region, Southwestern China

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地球科学进展 2004年第S1期19卷 449-455页

作者： TENGY~1, NIS~2, WANG J~1, ZHANG C~2 XU Z~2,TUO X~2 (1. Institute of Environmental Sciences, Beijing Normal University, Belling 100875, China 2. Department of Geochemistry, Chengdu University of Technology, Chengdu 610059, China)

mining activities have left huge uncovered slopes, large areas of gangue ground and extensive railings dams. In this paper, we studied some impacts of mining activities upon environment in Panzhihua region, southwestern China. The environmental impacts include ecological destruction, geological disasters, environmental pollution, land damage, solid waste and occupational health effect in study area. The author suggested that local government should take some measure to reduce environmental impact in Pan...

关键词： mining activity Environmental impact Pollution Panzhihua region SW China

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Environmental Geochemistry of mining Activities in Panzhihua Region, Southwestern China

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Journal of China University of Geosciences 2001年第4期12卷 296-300页

作者： Teng Yanguo Institute of Environmental Sciences, State Key Laboratory of Water Environmental Simulation, Beijing Normal University, Beijing 100875 Tuo Xianguo Department of Nuclear Resources and Technology, Chengdu University of Technology, Chengdu 610059 Faculty of Earth Sciences and Mineral Resources China University of Geosciences Beijing 100083 Ni Shijun Zhang Chengjiang Ma YuxiaoDepartment of Nuclear Resources and Technology Chengdu University of Technology Chengdu 610059 Department of Nuclear Resources and Technology Chengdu University of Technology Chengdu 610059 Faculty of Earth Sciences and Mineral Resources China University of Geosciences Beijing 100083 Department of Nuclear Resources and Technology Chengdu University of Technology Chengdu 610059

mining activities have created huge uncovered slopes, large areas of gangue ground and extensive tailings dams. This paper presents the environmental geochemistry of mining activities in Panzhihua region. The selected elements (Ti, V, Mo. Ni. Pb. Cu) show similar distribution patterns of concentration anomaly in topsoil. These concentration anomalies are located in V-Ti-magnetite slope, gangues dam and coal mine. The distinction between anthropogenic contamination and natural background is made available by the use of the enrichment factor in this study area. The anomalies of EF were smaller than that of concentration. The results from EF show that the selected elements anthropogenic pollution (EF>1) in topsoil were located in both the coal mining area and the V-Ti-magnetite mining area. In addition, the pollution sources of selected elements came from V-Ti-magnetite, slag, gangues, coal and other pollutants from mining activities.

关键词： environmental geochemistry mining activity Panzhihua region Southwestern China.

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Characterization of Topsoil Samples and Analysis of the Distribution of Heavy Metals in Parral Chihuahua, Mexico

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Journal of Environmental Science and Engineering 2010年第12期4卷 12-17页

作者： L. Rodriguez Vazquez H. Ferman Avila E. Torres Carrillo L. Shenz Macias J. Luna Carrete E. Herrera G.GonzSlez D. Aranda Caro J. Carrillo L. Lozoya lnstituto Tecnologico de Parral Avenida Tecnologico # 57 33860 Parral Chihuahua Mexico Centro de Investigacion en Materiales Avanzados （CIMAV） Miguel de Cervantes # 120 31109 Complejo Industrial Chihuahua Chihuahua. Chihuahua Mexico

During the 17th Century, Parral City in the Chihuahua State in Mexico was one of the most important miner zones in the whole world. After more than three centuries important amounts of residuals, known as tailings, with high contents of heavy metals were generated. These residuals are a potential risk for the environment and human health. Given to that, it decided to carry out the analysis of the concentrations of cadmium, lead, chromium, zinc and arsenics, in topsoil samples susceptible of airborne transport and accumulation in risky zones （populated areas）. A 120 kin： area was selected, this include Parral City and its surroundings. From this area 30 samples were obtained. For this purpose, Atomic Absorption Spectroscopy technique was used, expecting high concentrations of heavy metals, above the permit limits, since several studies carried out in the same region, as in San Francisco del Oro Chihuahua, show that the concentrations of all the elements sampled, in topsoil, were above the limits. The analysis in the space distribution of the heavy metal detected will allow us to set the points with the highest susceptibility to the accumulation of those pollutants and to propose mitigation measures and control.

关键词： Heavy metals mining activity topsoil

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Oregano and Composite Substrates： A Mitigation Alternative for Heavy Metals Emission from Tailings Deposits in Parral, Chihuahua, Mexico

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Journal of Environmental Science and Engineering(A) 2017年第3期6卷 127-134页

作者： Luis Miguel Rodriguez Vazquez Mario Lorenzo Franco Soto Magdiel Aaron Solis Lozoya Luis Manuel Saenz Macias Ever Ulysses Torres Carrillo Emilio Yanez Terrazas Eduardo Florencio Herrera Peraza Ramon Silva Vazquez Technological Institute of Parral Department of Chemical Engineering Hidalgo del Parral Chihuahua 33850 Mexico Research Center for Advanced Materials (CIMA V) Department of Renewable Energies and Environmental Protection Chihuahua 31109 Mexico Research Center for Natural Resources Salaices Chihuahua 33941 Mexico

The Mexican oregano ＂Lippia berlandieri Shauer＂ is a versatile plant, for multiple purposes and high potential adaptative capabilities. To evaluate the possibility to use oregano as a cover surface on tailings deposits and thereby mitigate the emission of particulate material with metals content, an experiment was carried out comparing the plant growing rate over a period of six-month in four substrates： tailings, vermicompost, ＂soil＂ of the region and a mixture of ＂tailings plus vermicompost＂. The statistical analysis shows a significant difference between treatments, resulting in the ＂soil＂ substrate with the best performance, followed by the mixture of＂tailings plus vermicompost＂ treatment. The low permeability oftailings strongly affects the adaptability and growth of the oregano plant; however, the adaptation possibilities increase in the mixture oftailings with vermicompost or ＂soil＂ of the region.

关键词： Oregano tailings mining activity heavy metals

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Quantification and Speciation of Mercury in Soils from Chatian Mercury mining Deposit,SW China

Quantification and Speciation of Mercury in Soils from Chati...

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中国地理学会2008年学术年会

作者： Yonghua LI Linsheng YANG Yanfang JI Hongfei SUN Wuyi WANG Institute of Geographical Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China.

＜正＞Contents of total Hg and Hg speciation,organic matter,pH,grain size and chemical composition were measured to investigate the pollution characteristics and binding behavior of mercury in soils collected from the... 详细信息

关键词： Chatian mining deposit Mercury mining activity Soil contamination Speciation

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