Contamination characteristics and risk assessment of soil heavy metals in a typical industrial town in Shandong Province, China
ZENG Jiao1,2(), KONG Ling-Hao1,2(), LIU Shu-Liang1,2, CHU Hong-Xian1,2, ZHAO Zheng-Peng1,2, YANG Kai-Li1,2, GUO Xu-Jun1,2, CHEN Liang1,2
1. Yantai Center of Coastal Zone Geological Survey, China Geological Survey, Yantai 264000, China 2. Ministry of Natural Resources Observation and Research Station of Land-Sea Interaction Field in the Yellow River Estuary, Yantai 264000, China
To investigate the contamination, source, and ecological risk of soil heavy metals in a typical industrial town in Shandong Province, China, this study collected 499 topsoil samples from the study area from August to October 2022. The contents and spatial distributions of heavy metals like Hg, Cd, As, Pb, Cu, Cr, Zn, and Ni in the samples were analyzed using classical statistics and spatial interpolation methods. The source apportionment of heavy metals in the study area was explored through the principal component analysis (PCA). The contamination levels of heavy metals in the study area were assessed using the contamination index method. The results indicate that the average contents of Hg, Cd, As, and Pb in soils all exceeded their background values in Yantai City, and high-value zones were observed for all eight elements, indicating various degrees of enrichment. The analysis of coefficients of variation reveals that except for Ni, other heavy metals were significantly influenced by human activities. The PCA suggests that Cd, Pb, Cu, Zn, and Cr originated primarily from industrial and traffic sources. As and Hg were predominantly derived from industrial, agricultural, and domestic sources, while Ni was primarily from natural soil parent materials. The analyses based on the single-factor contamination index, geoaccumulation index, and Nemerow contamination index show that apart from Hg and Cd, other soil heavy metals in the study area exhibited no or slight contamination overall, demonstrating that the study area was principally contaminated by Hg and Cd. The potential ecological risk assessment suggests that the overall heavy metal contamination posed a minor risk level. A few sites with relatively severe contamination were primarily located around the industrial area. The waste gas, wastewater, and industrial residue generated by industrial activities constituted the dominant factor influencing the enrichment of heavy metals in surrounding soils. Overall, soil heavy metal contamination in the study area was at a moderate to low level, with some metals, particularly Hg and Cd, severely exceeding standard levels, warranting attention. It is recommended to strengthen the monitoring of heavy metals in soils around the industrial area, and adopt scientific and reasonable measures to ensure sustainable soil utilization.
曾蛟, 孔令号, 刘淑亮, 褚宏宪, 赵正鹏, 杨开丽, 郭旭军, 陈亮. 山东省某典型工业城镇土壤重金属污染特征及风险评估[J]. 物探与化探, 2025, 49(4): 954-964.
ZENG Jiao, KONG Ling-Hao, LIU Shu-Liang, CHU Hong-Xian, ZHAO Zheng-Peng, YANG Kai-Li, GUO Xu-Jun, CHEN Liang. Contamination characteristics and risk assessment of soil heavy metals in a typical industrial town in Shandong Province, China. Geophysical and Geochemical Exploration, 2025, 49(4): 954-964.
Li X M, Li Q Q, Yang J, et al. Compound pollution characteristics and ecological risk assessment of heavy metals in soil and groundwater of typical industrial lands in Shanghai[J]. Environmental Science, 2022, 43(12):5687-5697.
Zhao L X, Lei H P, Wang Y H, et al. Evaluation and source analysis of soil heavy metal pollution around typical Industrial parks in upper reaches of Yellow River[J/OL]. Environmental Science,1-24 [2024-09-10].DOI:10.13227/j.hjkx.202404210.
Zhao Q L, Li Q C, Ma L, et al. Characteristics,health risks,and source analysis of heavy metal pollution in surface soil in Shanxian County[J]. Environmental Science, 2025, 46(1):442-452.
Xu Y L, Feng G L, Jiang X Y, et al. Distribution characteristics of heavy metals in soil and its influence on greening plants in a main road of Lanzhou City,Northwest China[J]. Chinese Journal of Applied Ecology, 2020, 31(4):1341-1348.
[5]
Hu B F, Jia X L, Hu J, et al. Assessment of heavy metal pollution and health risks in the soil-plant-human system in the Yangtze River Delta,China[J]. International Journal of Environmental Research and Public Health, 2017, 14(9):1042.
Han B, Huang Y, Li H, et al. Distributions, enrichment characteristics,and sources of heavy metals in soils in Fangshan District,Beijing[J]. Geophysical and Geochemical Exploration, 2024, 48(3):820-833.
Xia M, Zhao B Z, Zhang J B. Gis-based research on soil heavy metal accumulation in a fluvo-aquic soil area typical of the Huang-Huai-Hai plain[J]. Acta Pedologica Sinica, 2013, 50(4):684-692.
Gao Z Q, Zhang M J, Zhao K L, et al. Heavy metal contamination in soil-rice system and its spatial variation in Shengzhou City[J]. China Environmental Science, 2016, 36(1):215-224.
Qiu M L, Li F B, Wang Q, et al. Spatio-temporal variation and source changes of heavy metals in cultivated soils in industrial developed urban areas[J]. Transactions of the Chinese Society of Agricultural Engineering, 2015, 31(2):298-305.
Yang Y, Mei Y, Zhang C T, et al. Spatio-temporal modeling and prediction of soil heavy metal based on spatio-temporal Kriging[J]. Transactions of the Chinese Society of Agricultural Engineering, 2014, 30(21):249-255.
[11]
Jiang Y X, Chao S H, Liu J W, et al. Source apportionment and health risk assessment of heavy metals in soil for a township in Jiangsu Province,China[J]. Chemosphere, 2017,168:1658-1668.
Liu K, Li Y T, Yu H, et al. Pollution characteristics,risk assessment and sources analysis of soil heavy metals in an industrial park of Chongqing[J]. Environmental Monitoring in China, 2024, 40(2):74-83.
Yang Y, Liu B, Xia F Q, et al. Enrichment characteristics,source identification,and health risk assessment of soil heavy metals in typical cultivated land in the mountainous area of southern Anhui Province[J]. Geophysical and Geochemical Exploration, 2024, 48(1):255-263.
Ding X, Yuan B, Du P, et al. Heavy metal accumulation in soils of a typical mining community:Driving factors and probabilistic health risk assessment[J]. Earth Science Frontiers, 2024, 31(2):31-41.
Che K, Chen C M, Zheng Q Y, et al. Heavy metal emissions from coal-fired power plants and heavy metal pollution characteristics and health risks in surrounding soils[J]. Environmental Science, 2022, 43(10):4578-4589.
[16]
Liang J H, Liu Z Y, Tian Y Q, et al. Research on health risk assessment of heavy metals in soil based on multi-factor source apportionment:A case study in Guangdong Province,China[J]. Science of The Total Environment, 2023,858:159991.
Yu Y H, Lyu J S, Wang Y M. Source identification and spatial distribution of heavy metals in soils in typical areas around the lower Yellow River[J]. Environmental Science, 2018, 39(6):2865-2874.
Ai J C, Wang N, Yang J. Source apportionment of soil heavy metals in Jiapigou goldmine based on the UNMIX model[J]. Environmental Science, 2014, 35(9):3530-3536.
Dong L R, Hu W Y, Huang B, et al. Source appointment of heavy metals in suburban farmland soils based on positive matrix factorization[J]. China Environmental Science, 2015, 35(7):2103-2111.
Guo J K, Zhao J J, Li Y F, et al. Research progress on remediation technology for heavy metal-contaminated soil in mines[J]. Journal of Agricultural Resources and Environment, 2023, 40(2):249-260.
Bai G Q, Fu K B, Chen S, et al. Construction of screening model for remediation of heavy metal pollution in construction land[J]. Construction of screening model for remediation of heavy metal pollution in construction land[J]. China Environmental Science, 2023, 43(8):4147-4153.
Zhao X N, Yang Z F, Yu T. Review on heavy metal pollution and remediation technology in the soil of mining areas[J]. Geology in China, 2023, 50(1):84-101.
Li F, Liu S Y, Li Y, et al. Spatiotemporal variability and source apportionment of soil heavy metals in a industrially developed city[J]. Environmental Science, 2019, 40(2):934-944.
Chen M, Li M Y, Zhou J Y, et al. Pollution characteristics and source analysis of heavy metals in the atmosphere dustfall of a typical heavy industrial city in northwest China[J]. Environmental Science and Technology, 2024, 47(2):155-164.
Zhao Q L, Li Q C, An M G, et al. Potential source identification and ecological risk assessment of heavy metals in surface soil of Heze oil peony planting area based on PMF-PCA/APCS and PERI[J]. Environmental Science, 2023, 44(9):5253-5263.
Zhang W Q, Teng Y, Liu H R, et al. Distribution, ecological risks,and sources of heavy metals in soil of typical agricultural areas in Liaocheng City[J]. Journal of Arid Land Resources and Environment, 2024, 38(4):171-180.
Zhao Y J, Shi R G, Bai Z P, et al. Spatial variability analysis of soil arsenic in Zibo maize producing area,Shandong Province[J]. Environmental Science, 2006, 27(8):1676-1681.
Wang F, Fei M, Han D R, et al. Health risk assessment of heavy metals in soil and wheat grain in the typical sewage irrigated area of Shandong Province[J]. Environmental Science, 2023, 44(6):3609-3618.
Li M T, Shen C, Wu J, et al. Content and ecological risks of heavy metals in soil with different land uses in a rapidly urbanizing area[J]. Environmental Science, 2021, 42(10):4889-4896.
Meng L H, Du X L, Liu Q, et al. Pollution characteristics and risk assessment of Heavy metals in soil in urban area of Tai'an[J]. Chinese Journal of Inorganic Analytical Chemistry, 2022, 12(5):41-49.
Dai J R, Pang X G, Song J H, et al. A study of geochemical characteristics and ecological risk of elements in soil of urban and suburban areas of Zibo City,Shandong Province[J]. Geology in China, 2018, 45(3):617-627.
Wang B Y, Li Z H, Li H G, et al. Evaluation of soil pollution caused by heavy mental in wetland of the Yellow River Estuary National Park[J]. Journal of University of Jinan:Science and Technology, 2024, 38(3):267-273.
Zhao L Y, Kong L H, Zhao Z G, et al. Pollution characteristics,source analysis and risk assessment of heavy metals in soil around a gold mine in Jiaodong Peninsula[J]. Geology in China, 2024, 51(5):1485-1500.
[34]
朱林宇. 胶东金矿区土壤重金属时空变异及来源解析研究[D]. 济南: 山东师范大学, 2022.
[34]
Zhu L Y. Spatiotemporal variation and source apportionment of heavy metals in soils of Jiaodong gold mine[D]. Jinan: Shandong Normal University, 2022.
Li B, Hu S Y, Zhao Q S. Chemical characteristics of groundwater in coastal seawater intrusion area of Laizhou Bay[J]. Global Geology, 2020, 39(4):971-977.
Feng C X, Qiu L W, Gao M S, et al. Hydrochemical evolution of groundwater in muddy coastal zone of the northern Shandong Peninsula[J]. Marine Geology Frontiers, 2022, 8(12):16-25.
Wan M X, Jiao W T, Hu W Y, et al. Accumulation and source apportionment of heavy metals in urban-industrial soils—A case study in Minhang District of Shanghai[J]. Environmental Chemistry, 2023, 42(6):1886-1898.
Pang X G, Dai J R, Chen L, et al. Soil geochemical background value of 17 cities in Shandong Province[J]. Shandong Land and Resources, 2019, 35(1):46-56.
Xu Z Q, Ni S J, Tuo X G, et al. Calculation of heavy metals' toxicity coefficient in the evaluation of potential ecological risk index[J]. Environmental Science & Technology, 2008, 31(2):112-115.
Yang J Y, Xiong J, Li W, et al. Soil heavy metal risk evaluation and source analysis of Zhaxigang wetland in Tibet based on PCA-APCS-MLR Model[J]. Chinese Journal of Ecology, 2024, 43 (6):1807-1816.
doi: 10.13292/j.1000-4890.202406.038
Chen X M, Zhu B H, Yang W, et al. Sources,spatial distribution and contamination assessments of heavy metals in gold mine area soils of Miyun Reservoir upstream,Beijing,China[J]. Environmental Chemistry, 2015, 34 (12):2248-2256.
Li L. Spatial distribution,sources and risk assessment of soil heavy metals in typical Industrial park in Shanxi Province[D]. Taiyuan: Taiyuan University of Science and Technology, 2023.
[43]
张东明. 工业区周边农田土壤重金属分布特征及风险评价[D]. 石河子: 石河子大学, 2017.
[43]
Zhang D M. Heavy metal distribution and risk evaluation in farmland soil around an industrial area in northern Xinjiang[D]. Shihezi: Shihezi University, 2017.
Lai J J, Yang D Y, Liu L, et al. Characteristics and source identification of heavy metal pollution in shallow topsoil in Yinchuan City,northwest China[J/OL]. 中国环境科学,1-12[2024-09-10].https://doi.org/10.19674/j.cnki.issn1000-6923.20240326.006.
Fan X G, Mi W B, Ma Z M, et al. Spatial and temporal characteristics of heavy metal concentration of surface soil in Hebin industrial park in Shizuishan northwest China[J]. Environmental Science, 2013, 34 (5):1887-1894.
Wang Z Y. Research on risk assessment and source analysis of heavy metal pollution in farmland soil in Chaoyang Region[D]. Shenyang: Shenyang Agricultural University, 2018.
Tian T, Yang T, Zou X M, et al. Heavy metals in farmland surrounding the Sanming steel plant in western Fujian:Pollution characteristics and risk assessment[J] Journal of Agriculture, 2021, 11 (6):42-46.
doi: 10.11923/j.issn.2095-4050.cjas20191000246
Xie X J, Kang J C, Li W J, et al. Analysis on heavy metal concentrations in agricultural soils of Baoshan,Shanghai[J] Environmental Science, 2010, 31 (3):768-774.
Wang G L, Li L K, Hao M D, et al. Effects of long-term fertilization on heavy-metal contents of soil and environmental quality evaluation[J]. Journal of Soil and Water Conservation, 2010, 24 (3):60-63,70.
Liu Y, Yue L L, Li J C. Evaluation of heavy metal contamination and its potential ecological risk to the soil in Taiyuan,China[J]. Acta Scientiae Circumstantiae, 2011, 31 (6):1285-1293.
Shen C, Liu F W, Wu J, et al. Distribution and ecological risk of heavy metals in the soil of redevelopment industrial sites[J]. Environmental Science, 2020, 41 (11):5125-5132.