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在中国快速减少空气污染和短期暴露风险

Hao Fan¹, Chuanfeng Zhao², Yikun Yang²

¹State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China.

Journal of environmental sciences (China)

|August 24, 2024

概括

中国中国中国中国.

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:

由于排放控制,中国已经改善了空气质量.
中国对空气污染短期暴露风险的研究有限.
了解这些风险对于公共卫生战略至关重要.

研究的目的:

研究2015年至2022年中国空气污染的时空特征.
评估与空气污染相关的短期暴露风险的变化.
评估中国大气清洁行动对健康风险的有效性.

主要方法:

利用每小时地面空气质量监测数据 (2015-2022年).
应用了中国生态环境部和世卫组织的空气质量指南.
分析了单一和多重污染物空气污染日 (SAPD和MAPD) 和过度风险 (ER).

主要成果:

大多数污染物,除了臭氧,每年都呈现下降趋势.
观察到SAPD和MAPD的全国性减少.
颗粒物 (PM2.5,PM10) 主导SAPD并为MAPD做出贡献;过度风险下降,但在区域范围内存在差异,西北地区的风险更高.

结论:

中国的大气清洁行动显著降低了健康风险.
颗粒物仍然是短期暴露的主要污染物,沙尘暴加剧了这种情况.
空气污染暴露风险的区域差异仍然存在,需要有针对性的干预措施.

关键词:

空气污染大气污染中国中国中国中国.减少排放 - 减少排放颗粒物质颗粒物质是什么总的超额风险总量超额风险总量

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