环境细颗粒物和臭氧对372个城市每日死亡率的互动影响:两阶段时间序列分析
Cong Liu1, Renjie Chen1, Francesco Sera2
1School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai 200032, China.
概括
细颗粒物 (PM2.5) 和臭氧 (O3) 在协同作用下相互作用,使全球每日死亡率增加. 建议对这两种污染物采取协调的控制策略,以减轻这些健康风险.
科学领域:
- 环境流行病学环境流行病学
- 公共卫生 公共卫生
- 大气科学 大气科学
背景情况:
- 空气污染,特别是细颗粒物 (PM2.5) 和臭氧 (O3),对全球健康构成重大风险.
- 了解多种污染物的相互作用影响对于有效的公共卫生干预至关重要.
研究的目的:
- 研究PM2.5和O3对全球每日死亡率的综合影响.
- 探索这两种主要空气污染物之间的潜在协同作用.
主要方法:
- 使用了两阶段时间序列分析.
- 分析了来自19个国家的372个城市的数据,涵盖1994-2020年.
- 用分层分析和协同效应指数计算来评估污染物相互作用.
主要成果:
- 对于总死亡率 (协同作用指数 = 1.93) 发现PM2.5和O3之间的显著协同作用相互作用.
- 增加PM2.5暴露增加了所有O3度水平的死亡风险.
- 相互作用在高度地区和寒冷季节更为明显.
结论:
- PM2.5和O3对总,心血管和呼吸道死亡率具有协同作用.
- 针对PM2.5和O3的协调空气污染控制战略至关重要.
- 这些发现凸显了综合空气质量管理对保护公共卫生的重要性.
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