Insights into heavy metal accumulation and chemical speciation in Huixian Karst Wetland, China: Depositional history, mercury isotope tracing and environmental risk assessment.
Heavy metal (HM) contamination in wetland sediments has attracted increasing attention because of its persistence and potential ecological impacts. In this study, HMs including Cd, Pb, Zn, Ni, As, and Hg in the surface and core sediments of the Huixian Karst Wetland were investigated in terms of the contamination chara...