[大气中重金属的来源和健康风险 PM2.5 基于APCS-MLR和PMF模型]
Jia-Mei Peng1,2, Rui-Lian Yu1,2, Gong-Ren Hu1,2
1College of Chemical Engineering, Huaqiao University, Xiamen 361021, China.
Huan jing ke xue= Huanjing kexue
|November 29, 2025
概括
南康市大气PM2.5样本显示重金属度高,主要来自机动车辆,工业和燃煤. 和具有潜在的致癌风险,特别是对成年男性.
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:
- 颗粒物 (PM2.5) 污染是一个重大的环境问题.
- 在PM2.5中的重金属对生态系统和人类健康构成风险.
- 了解污染源和健康影响对于有效的环境管理至关重要.
研究的目的:
- 研究南康市大气PM2.5中的重金属的特性,来源和健康风险.
- 量化不同来源对重金属污染的贡献.
- 评估与接触这些重金属相关的非致癌和致癌风险.
主要方法:
- 从2018年10月到2019年7月,季节性地收集PM2.5样本.
- 感应合等离子体质谱仪 (ICP-MS) 用于重金属分析.
- 丰富因子分析,多变量分析,APCS-MLR和PMF模型用于来源分配.
- 对非致癌性和致癌性影响的健康风险评估.
主要成果:
- 平均PM2.5度超过了国家标准,冬季达到最高水平.
- 重金属度按照下面的顺序进行:Fe > Zn > Pb > As > Mn > Cu > Ba > Cd > Co.
- 大多数重金属都受到人类活动的丰富和影响,燃烧煤炭贡献了20%-40%.
- 和存在潜在的致癌风险,特别是对于成年男性.
结论:
- 南康市的PM2.5污染和相关的重金属是重要的环境和健康问题.
- 人类活动,特别是燃烧煤炭,是重金属污染的主要原因.
- 需要有针对性的干预措施来减轻重金属暴露的健康风险,特别是和的致癌风险.
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