大气中碳的时间演变,来源分配和健康风险:在长江中部三角洲地区的案例研究
Yuchun Jiang1,2, Anqi Zhang1, Qiaoli Zou2
1State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
Toxics
|December 24, 2025
概括
长江三角洲 (YRD) 的碳污染正在上升,主要是由制药制造等工业来源推动的. 甲和1,2-二乙水平的上升带来了越来越大的致癌风险,需要采取有针对性的污染控制措施.
科学领域:
- 环境化学环境化学
- 大气科学 大气科学
- 公共卫生 公共卫生
背景情况:
- 人们越来越担心环氧碳对平流层臭氧和热层健康影响的影响.
- 关于长期碳污染和长江三角洲 (YRD) 的健康风险的有限观察数据.
- 之前的模型表明,YRD产生的环碳排放量很大.
研究的目的:
- 从2018年到2023年在YRD中进行持续的环碳观测.
- 确定碳污染的主要来源和趋势.
- 评估相关的健康风险,特别是致癌风险.
主要方法:
- 在YRD的山西工厂不断监测大气中的碳化合物.
- 使用正矩阵分解 (PMF) 和化学质量平衡配置 (CBPF) 的来源分配.
- 健康风险评估,重点关注特定环碳的致癌风险.
主要成果:
- 基化物显著增加,包括二甲,甲,1,2-二甲和甲.
- 确定的主要来源:制药制造 (37.0%60.2%),化学原料制造 (8.0%19.9%),以及机械 (12.4%24.7%) 和电子行业的溶剂使用.
- 和1,2-二乙烯的致癌风险增加;电子工业溶剂使用和背景来源的高概率 (94.8%94.9%) 超过可接受的健康风险水平.
结论:
- 来自制造和溶剂使用的本地排放是YRD中光碳污染增加的关键驱动因素.
- 随着致癌风险的增加,迫切需要关注和制定关于控制碳污染的政策.
- 该研究提供了重要的观察数据,以告知YRD的环境政策和风险管理.
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