Spatial distribution of harmful trace elements in Chinese coals

Authors

CAO Qingyi, School of Geosciences and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, ChinaFollow
REN Wenying, School of Geosciences and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China
LIANG Chaoming, School of Geosciences and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China
ZHANG Yufei, School of Geosciences and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China
YANG Liu, School of Geosciences and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, ChinaFollow

Abstract

The potential impact of harmful trace elements in coal on the ecological environment and human health is one of the hot topics in the fields of geochemistry and energy environment. Geochemical mapping plays an important role in the deep understanding of geochemical processes and their changing laws. However, previous studies have not provided the national geochemical maps of harmful trace elements in Chinese coals. In this study, the content data of 1 167 Be, 1 315 Co, 1 406 Cu, 1 191 Mo, 1 247 Th, and 1 390 Zn in Chinese coal samples are analyzed, and their average contents are measured. The supporting data are obtained from the trace elements in coal of China (TECC) database. The geochemical maps of Be, Co, Cu, Mo, Th, and Zn in Chinese coals have been published by using ArcGIS mapping. The main conclusions are as follows. The content of harmful trace elements in Chinese coals has a large span and the data distribution is positively biased, which does not conform to the normal distribution. The average content of Be, Co, Cu, Mo, Th and Zn in Chinese coals is 2.10, 5.53, 21.36, 2.19, 7.35 and 30.02 mg/kg, respectively. The spatial distribution of the content of harmful trace elements in Chinese coals is extremely uneven. The spatial distribution pattern of the content of harmful trace elements in coal is dependent on many factors, such as source-rock, hydrothermal action, water migration, etc. Among them, hydrothermal action is a typical feature of abnormal concentration of harmful trace elements in coal. This study can provide intuitive and effective references for geochemical research and environmental management of coal mines.

Keywords

harmful trace element, spatial distribution, Be, Co, Cu, Mo, Th, Zn, coal, ArcGIS technology

DOI

10.12363/issn.1001-1986.21.09.0520

Recommended Citation

CAO Qingyi, REN Wenying, LIANG Chaoming, et al. (2022) "Spatial distribution of harmful trace elements in Chinese coals," Coal Geology & Exploration: Vol. 50: Iss. 5, Article 3.
DOI: 10.12363/issn.1001-1986.21.09.0520
Available at: https://cge.researchcommons.org/journal/vol50/iss5/3

Reference

[1] XIE Xuejing,WANG Xueqiu,CHENG Hangxin,et al. Digital element earth[J]. Acta Geologica Sinica(English Edition),2011,85(1):1−16.

[2] WANG Xueqiu,ZHANG Bimin,NIE Lanshi,et al. Mapping chemical earth program:Progress and challenge[J]. Journal of Geochemical Exploration,2020,217:106578.

[3] WANG Xueqiu,ZHANG Qin,ZHOU Guohua. National−scale geochemical mapping projects in China[J]. Geostandards and Geoanalytical Research,2007,31(4):311−320.

[4] KYSER K,BARR J,IHLENFELD C. Applied geochemistry in mineral exploration and mining[J]. Elements,2015,11(4):241−246.

[5] 王学求，徐善法，聂兰仕，等. 全球一张地球化学图与全球资源环境评价[C]//中国地质学会. 中国地质学会2015学术年会论文摘要汇编(中册). 北京：中国地质学会地质学报编辑部，2015.

[6] LADENBERGER A,DEMETRIADES A,REIMANN C,et al. GEMAS:Indium in agricultural and grazing land soil of Europe:Its source and geochemical distribution patterns[J]. Journal of Geochemical Exploration,2015,154:61−80.

[7] CICCHELLA D,GIACCIO L,DINELLI E,et al. GEMAS:Spatial distribution of chemical elements in agricultural and grazing land soil of Italy[J]. Journal of Geochemical Exploration,2015,154:129−142.

[8] XIE Xuejing,WANG Xueqiu,ZHANG Qin,et al. Multi–scale geochemical mapping in China[J]. Geochemistry:Exploration,Environment,Analysis,2008,8(3/4):333−341.

[9] FEOKTISTOV V M,KHARIN V N,SPECTOR E N. Studying precipitation chemistry by multivariate analysis based on data of rural stations in Russian Barents Region[J]. Water Resources,2014,41(4):421−430.

[10] DAVID B S. Geochemical studies of North American soils:Results from the pilot study phase of the North American Soil Geochemical Landscapes Project[J]. Applied Geochemistry,2009,24(8):1355−1356.

[11] JIANG Ping,YANG Hufang,MA Xuejiao. Coal production and consumption analysis,and forecasting of related carbon emission:Evidence from China[J]. Carbon Management,2019,10(2):189−208.

[12] CHEN Hong,LI Li,LEI Yalin,et al. Public health effect and its economics loss of PM2.5 pollution from coal consumption in China[J]. Science of the Total Environment,2020,732:138973.

[13] CAO Qingyi,YANG Liu,QIAN Yahui,et al. Study on mercury species in coal and pyrolysis–based mercury removal before utilization[J]. ACS Omega,2020,5(32):20215−20223.

[14] TONG Yali,YUE Tao,GAO Jiajia,et al. Partitioning and emission characteristics of Hg,Cr,Pb and as among air pollution control devices in Chinese coal−fired industrial boilers[J]. Energy and Fuels,2020,34(6):7067−7075.

[15] WANG Jinxi,YANG Zhen,QIN Shenjun,et al. Distribution characteristics and migration patterns of hazardous trace elements in coal combustion products of power plants[J]. Fuel,2019,258:116062.

[16] CHANG Lin,YANG Jianping,ZHAO Yongchun,et al. Behavior and fate of As,Se,and Cd in an ultra–low emission coal–fired power plant[J]. Journal of Cleaner Production,2019,209:722−730.

[17] JIA Jianli,LI Xiaojun,WU Peijing,et al. Human health risk assessment and safety threshold of harmful trace elements in the soil environment of the Wulantuga open–cast coal mine[J]. Minerals,2015,5(4):837−848.

[18] YAO Enqin,GUI Herong. Four trace elements contents of water environment of mining subsidence in the Huainan diggings,China[J]. Environmental Monitoring and Assessment,2008,146(1/2/3):203−210.

[19] CAO Qingyi,YANG Liu,REN Wenying,et al. Spatial distribution of harmful trace elements in Chinese coalfields:An application of WebGIS technology[J]. Science of the Total Environment,2020,755:142527.

[20] YANG Liu,BAI Xue,HU Yinjie,et al. Construction of trace element in coal of China database management system:Based on WebGIS[J]. Sains Malaysiana,2017,46(11):2195−2204.

[21] OSGeo中国中心. 中国煤炭资源(1∶3 200万)在线地图[EB/OL]. (2020–02–17) [2021–09–15]. https://www.osgeo.cn/map/m01c8.

[22] DAI Shifeng,REN Deyi,CHOU Chenlin,et al. Geochemistry of trace elements in Chinese coals:A review of abundances,genetic types,impacts on human health,and industrial utilization[J]. International Journal of Coal Geology,2012,94:3−21.

[23] 任德贻，赵峰华，代世峰，等. 煤的微量元素地球化学[M]. 北京：科学出版社，2006.

[24] 唐修义，黄文辉. 中国煤中微量元素[M]. 北京：商务印书馆，2004.

[25] 白向飞,李文华,陈亚飞,等. 中国煤中微量元素分布基本特征[J]. 煤质技术,2007(1):1−4. BAI Xiangfei,LI Wenhua,CHEN Yafei,et al. The general distributions of trace elements in Chinese coals[J]. Coal Quality Technology,2007(1):1−4.

[26] KETRIS M P,YUDOVICH Y E. Estimations of Clarkes for carbonaceous biolithes:World averages for trace element contents in black shales and coals[J]. International Journal of Coal Geology,2009,78(2):135−148.

[27] 任德贻,赵峰华,张军营,等. 煤中有害微量元素富集的成因类型初探[J]. 地学前缘,1999,6(增刊1):17−22. REN Deyi,ZHAO Fenghua,ZHANG Junying,et al. A preliminary study on genetic type of enrichment for hazardous minor and trace elements in coal[J]. Earth Science Frontiers,1999,6(Sup.1):17−22.

[28] REN Deyi,ZHAO Fenghua,WANG Yunquan,et al. Distributions of minor and trace elements in Chinese coals[J]. International Journal of Coal Geology,1999,40:109−118.

[29] 刘桂建,彭子成,杨萍玥,等. 煤中微量元素富集的主要因素分析[J]. 煤田地质与勘探,2001,29(4):1−4. LIU Guijian,PENG Zicheng,YANG Pingyue,et al. Mian factors controlling concentration of trace element in coal[J]. Coal Geology & Exploration,2001,29(4):1−4.

[30] CAO Qingyi,YANG Liu,REN Wenying,et al. Environmental geochemical maps of harmful trace elements in Chinese coalfields[J]. Science of the Total Environment,2021,799:149475.