CAS Key Laboratory of Crust Mande Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China.
Geo-Environment Monitoring Institute of Anhui Province, Hefei 230001, China.
Molecules. 2021 Aug 24;26(17):5127. doi: 10.3390/molecules26175127.
Lime mines are a potential source of pollution, and the surrounding soil environment is generally at threat, especially in abandoned lime mines. This paper focuses on the study area in eastern Anhui, attempting to analyze whether Cd enrichment is related to abandoned mines. On the basis of geological investigation, this study systematically used XRD, XRF, GTS and universal Kriging interpolation to determine the distribution law of Cd in the study area, and evaluated the potential ecological risk of Cd. The results showed that the main mineral types of soil samples of red clastic rock soil parent material (RdcPm) and soil samples of carbonate soil parent material (CPm) were not completely the same. Correlation analysis showed that CaO, MgO and Cd were positively correlated with the CPm. Human activities led to the accumulation of Cd in the study area. High Cd was mainly concentrated in the northwest of the study area, which was correlated with abandoned mines and soil parent materials. The study area was dominated by slight potential risks, although some areas had medium potential risks and high potential risks. All potential high risks were in the CPm field. This study provides a scientific basis for the comprehensive utilization and development planning of soil in the study area.
石灰矿是潜在的污染源，周围的土壤环境通常受到威胁，尤其是废弃的石灰矿。本文以安徽东部为研究区，尝试分析 Cd 富集是否与废弃矿山有关。在地质调查的基础上，本研究系统地利用 XRD、XRF、GTS 和通用克里金插值法来确定研究区 Cd 的分布规律，并评估 Cd 的潜在生态风险。结果表明，红碎屑岩土壤母质（RdcPm）和碳酸盐土壤母质（CPm）土壤样品的主要矿物类型并不完全相同。相关分析表明，CaO、MgO 和 Cd 与 CPm 呈正相关。人类活动导致研究区 Cd 的积累。高 Cd 主要集中在研究区的西北部，与废弃矿山和土壤母质有关。研究区以轻微的潜在风险为主，尽管一些地区存在中等和高潜在风险。所有潜在的高风险都在 CPm 区。本研究为研究区土壤的综合利用和开发规划提供了科学依据。
