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在中国的清洁空气行动之后,在北京减少了多环芳暴露

Yan Lin¹, Xiaodi Shi², Xinghua Qiu²

¹SKL-ESPC & SEPKL-AERM, College of Environmental Sciences and Engineering, and Center for Environment and Health, Peking University, Beijing 100871, China; Department of Environmental Health Sciences, Jonathan and Karin Fielding School of Public Health, University of California Los Angeles, Los Angeles 90095, USA; Nicholas School of the Environment and Global Health Institute, Duke University, Durham 27708-0187, USA.

Science bulletin

|August 24, 2024

概括

中国的清洁空气倡议显著减少了多环芳 (PAH) 和北京的人类暴露. 这些两阶段计划,即空气污染预防和控制行动计划 (APPCAP) 和蓝天防御战争 (BSDW),导致PAH水平大幅下降.

科学领域:

环境科学环境科学
公共卫生公共卫生
大气化学大气化学

背景情况:

在全球范围内,中国对多环芳 (PAH) 的高暴露给健康带来了风险.
空气污染,特别是PM2.5,是北京的一个主要问题.
氧气与各种不良健康影响有关.

研究的目的:

评估中国的两阶段清洁空气倡议对北京的PAH水平和人类暴露的影响.
评估空气污染预防和控制行动计划 (APPCAP) 和蓝天防御战争 (BSDW) 的有效性.
量化PM2.5结合的PAH和尿路PAH代谢物的减少.

主要方法:

在北京 (2014-2021) 采集的PM2.5样本中测量了16种PAH.
在洛杉矶和北京 (2014-2018) 之间旅行者的尿样中分析了9种PAH代谢物.
北京的PAH水平与洛杉矶的PAH水平进行比较,作为对照.

主要成果:

与PM2.5结合的甲等价物 (BaPeq) 减少了88.5% (2014-2018年) 和96.6% (2014-2021年) 总体.
在北京,旅行者的尿液PAH代谢物度下降了52.3%.
减少归因于交通,煤炭和生物质排放量的减少,在蓝天防御战争阶段持续下降.

结论:

中国的清洁空气倡议在降低PAH水平和北京人口暴露方面非常有效.
APPCAP和BSDW在改善有关PAHs的空气质量方面取得了重大成功.
持续努力对于长期改善空气质量和保护公共健康至关重要.

关键词:

空气污染大气污染清洁空气行动的清洁空气行动.暴露生物标志物暴露生物标志物多环芳香碳化合物多环芳香碳化合物

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