Levels, Distribution, and Sources of Heavy Metals in Tobacco‐Growing Soils of Liancheng County: Insights From PCA and PMF Models

Soil heavy metal contamination has become a global environmental issue, posing long‐term risks to ecosystems, human health, and agricultural sustainability. In regions like Fujian Province, China, soil pollution is exacerbated by both agricultural and industrial activities, with tobacco‐growing areas facing heightened risks due to heavy metal accumulation. This study aimed to assess the contamination levels, ecological risks, and sources of seven key heavy metals (Pb, Cd, Hg, Cr, As, Cu, and Zn) in the tobacco‐growing soils of Liancheng County, Fujian Province. We employed a combination of pollution indices (Pi and Pn), ecological risk indices (RI and Igeo), and multivariate statistical methods (principal…

• NC
  National College Students Innovation and Entrepreneurship Training Program

  Award: DCZ2026027
• HP
  Henan Provincial Science and Technology Research Project

  Award: 252102320324