Real-Time Detection Method for Heavy Metal Pollution in Soil of Mining Area

Abstract

<p>Solid wastes and acid wastewater lead to the enrichment of heavy metals in the soil of mining area. Heavy metal pollution causes the decline of soil quality, ecosystem degradation, crop yield reduction, and even threatens human health. For this reason, the real-time detection method for heavy metal pollution in mining area is studied. Taking a mining area as an example, the data of heavy metal content in mining area soil are collected by PLSR model. Based on the collected data, the real-time detection model of heavy metal pollution in mining area soil based on improved analytic hierarchy process and weighted average method is adopted to real-time detect the heavy metal pollution index in the soil of mining area. The results show that the pollution index of Cu, Zn and Pb in the soil of this mining area belongs to heavy pollution, and the pollution of Cd is relatively small. Among them, the pollution index of Pb is the largest among the four heavy metals, and the pollution is quite serious. The pollution sources of Pb, Zn and Cu in this mining area are the same, and the pollution sources of Cd are different from those of other three heavy metals.</p>

Research on Risk Assessment and Contamination Monitoring of Potential Toxic Elements in Mining Soils

“…The analytical hierarchy process uses the principle of fuzzy mathematics to combine quantitative and qualitative methods to conduct hierarchical research on complex problems and is often used to solve multiobjective decision-making problems [ 16 , 17 ]. Yang et al used the analytic hierarchy process and weighted average method to build a model to conduct real-time detection for soil PTE contamination in mining areas [ 18 ]. Yang et al used the Analytic Hierarchy Process (AHP) to determine the weight of mixed entropy in the entropy-cloud model to quantify the problem of PTE assessment in agricultural fields [ 19 ].…”

Evolutionary Game and Simulation Analysis of Participating Subjects in Remediation of Heavy Metal Contaminated Cultivated Land under the Ladder Multiple Supervision Model

“…Heavy metal pollution of cultivated land not only endangers the ecological safety of cultivated land, resulting in crop yield reduction [4,5], cultivated land biodiversity de-cline [6,7], and other consequences, but also leads to "cadmium rice", "blood lead", and other events, directly posing a serious threat to human life [8][9][10]. Under this pressure, implementing heavy metal contaminated cultivated land remediation cannot wait.…”