Simulation Study on Risk and Influencing Factors of Cadmium Loss in Contaminated Soil

Cadmium (Cd) in contaminated soil not only enters surface water via rainfall runoff but also penetrates groundwater, adversely affecting human health through the food chain. This research examined three kinds of from Luoping County southwestern China, with different Cd pollution levels. Simulated and column leaching experiments were conducted to explore risks factors influencing loss underground at ground slopes (6°, 12°, 18°, 24°), intensities (30, 60, 90 mm∙h−1), profile conditions. The results show that risk increased a higher intensity or degree, reaching peak slope 18°. main factor was followed by degree slope. mainly determined time depth. primary time, organic matter (SOM) concentration pH minimally affected loss. provide theoretical basis for management control cadmium soil, indicate environment-friendly treatment method high polluted deserves attention.