在丹江口水库周围的PM2.5结合重金属:来源,运输途径和健康风险
Chunyan Xiao1,2, Dongxue Lu3, Pengbo Li3,4
1School of Resources and Environment, Henan Polytechnic University, No.2001, Century Avenue, Jiaozuo, 454003, Henan Province, China. xiaochunyan@hpu.edu.cn.
Environmental geochemistry and health
|February 24, 2026
概括
微粒颗粒物 (PM2.5) 中的重金属在丹江口水库地区对健康构成风险. 煤炭燃烧虽然是一个小的来源,但对致癌风险有很大的贡献,需要有针对性的空气污染控制.
科学领域:
- 环境科学 环境科学
- 大气化学 大气化学
- 公共卫生 公共卫生
背景情况:
- 丹江口水库是南北转水项目的一个关键水源.
- 颗粒物 (PM2.5) 结合的重金属会影响水质和人类健康.
- 了解污染源和风险对于环境保护至关重要.
研究的目的:
- 为了调查PM2.5结合重金属在西川水库地区的影响.
- 确定主要的污染源和大气运输途径.
- 评估与这些重金属相关的潜在健康风险.
主要方法:
- 在西川水库地区建立了四个监测站点.
- 从2022年6月到2023年4月收集了112个PM2.5样本.
- 使用PMF分析分析了九种重金属 (Cr, Mn, Fe, Ni, Cu, Zn, As, Cd, Pb) 的度.
主要成果:
- 总重金属平均度为1.9062μg m−3;Zn和Fe是最丰富的.
- 春季观察到的度较高;夏季和冬季观察到的度较低.
- 煤炭燃烧是致癌 (81%) 和非致癌 (65-67%) 风险的主要来源,尽管质量贡献很低.
结论:
- 与PM2.5结合的重金属,特别是来自煤炭燃烧的重金属,在水库区域构成严重的健康风险.
- 农业和交通排放是当地/区域的重要来源.
- 结果为丹江口水库地区的有针对性的空气污染控制提供数据.
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