Bohan Wu, Quan Wan, Xiao Li, Shukun Lin, Yanqi Jiang, Xu Yang, Jingjing Li, Qingqi Lin, Jean Louis Morel, Rongliang Qiu
The tailings soil originating from an abandoned sulfur-iron mine in Sichuan Province, China, exhibits elevated concentrations of heavy metals (HMs) and possesses limited soil conservation capacity. Variability soil particle size fractions (PSFs) contributes to an increased risk of HMs ion migration. Existing research on HMs behavior has focused on the bulk soil scale, resulting in a dearth of comprehensive information concerning different particle sizes and colloid scales. We collected soil samples from upstream source (XWA), migration path (XWB), and downstream farmland (XWC) of an abandoned tailing and categorized into sand, silt, clay, colloid and dissolved, respectively...
February 15, 2024: Journal of Hazardous Materials