生态与农村环境学报2026，Vol.42Issue(8)：1125-1136,12.DOI:10.19741/j.issn.1673-4831.2025.0486
鄱阳湖平原区典型山地大气湿沉降重金属沉降特征及其来源解析研究
Research on the Characteristics of Heavy Metal Concentrations of Atmospheric Wet Deposition and Source Analy-sis for the Typical Mountains in the Poyang Lake Plain Area
摘要
Abstract
Atmospheric heavy metal pollution seriously threatens human health and ecological security and has become a major ecological and environmental issue restricting socioeconomic development.To reveal the concentration variations and sources of heavy metals in precipitation in typical mountainous areas of the Poyang Lake Plain,precipitation samples were collected in the Lushan area from January 2018 to December 2020.The concentrations of seven heavy metal elements,namely manganese(Mn),nickel(Ni),copper(Cu),zinc(Zn),arsenic(As),cadmium(Cd),and lead(Pb),were determined.The concentration levels and sources were analyzed using precipitation-volume-weighting,one-way anal-ysis of variance(ANOVA),the Positive Matrix Factorization(PMF)model,and the Hybrid Single-Particle Lagrangian Integrated Trajectory(HYSPLIT)model.The research results show that,among the seven heavy metals in precipitation,zinc(Zn)has the highest volume-weighted concentration(41.87 μg·L-1),whereas cadmium(Cd)had the lowest con-centration(0.14 μg·L-1).Moreover,the concentrations of all seven heavy metals were lower than the Class Ⅱ ground-water quality standards.Heavy metal concentrations in precipitation were jointly influenced by precipitation,temperature,precipitation pH and human activities and exhibited obvious seasonal variations.The concentrations of heavy metals in pre-cipitation were also affected by the combined effects of industrial activities and the prevention and control measures imple-mented during the pandemic,resulting in significant interannual variation.The source of heavy metals in precipitation were mainly transported to Lushan from the southwest and east.The identified sources included energy consumption sources and domestic pollution sources(22.6%),non-ferrous metal mining sources(22.5%),mixed transportation and agricultural production sources(27.2%),and industrial sources(27.7%).This study has important practical implica-tions for monitoring and controlling atmospheric heavy metal deposition in typical mountainous areas of the Poyang Lake Plain and for maintaining ecological environment security.关键词
降水重金属/鄱阳湖平原区/影响因素/源解析/HYSPLIT模型Key words
heavy metals in precipitation/Poyang Lake Plain/influencing factors/source analysis/HYSPLIT Model分类
资源环境引用本文复制引用
曾敏,刘欣雨,周晶,李静,张漫珍,叶辉,吴华武..鄱阳湖平原区典型山地大气湿沉降重金属沉降特征及其来源解析研究[J].生态与农村环境学报,2026,42(8):1125-1136,12.基金项目
国家自然科学基金项目(42201105,42571093) （42201105,42571093）
安徽省教育厅科学研究项目(2025AHGXZK31338) （2025AHGXZK31338）
