Extreme temperatures amplify air pollution risks to childhood respiratory health in school environment in Jiangsu province, China

作     者：Wu, Yangyang Yang, Jie Wei, Jing Cheng, Biran Wang, Yiyi Li, Chen Wang, Peng Sun, Hong Huang, Lei 

作者机构：Nanjing Univ Sch Environm State Key Lab Water Pollut Control & Green Resourc 163 Xianlin Ave Nanjing 210023 Peoples R China Hong Kong Polytech Univ Dept Civil & Environm Engn Hong Kong Peoples R China Jiangsu Prov Ctr Dis Control & Prevent Jiangsu Rd 172 Nanjing 210009 Peoples R China Univ Maryland Earth Syst Sci Interdisciplinary Ctr Dept Atmospher & Ocean Sci College Pk MD USA Anhui Univ Technol Sch Energy & Environm Maanshan 243002 Peoples R China Nanjing Univ Med Sch Ctr Publ Hlth Res Nanjing 210093 Jiangsu Peoples R China Jiangsu Univ Fac Civil Engn & Mech 301 Xuefu Rd Zhenjiang 212013 Jiangsu Peoples R China Basic Sci Ctr Energy & Climate Change Beijing Peoples R China 

出 版 物：《COMMUNICATIONS EARTH & ENVIRONMENT》 (Commun. Earth Environ.)

年 卷 期：2025年第6卷第1期

页      面：1-11页

核心收录：

基　　金：National Natural Science Foundation of China (National Science Foundation of China) [72488101, 42377420, 42477499] National Natural Science Foundation of China 

摘      要：Childhood respiratory diseases remain a major global health concern, with school-centered exposures to air pollution and extreme temperatures posing significant risks. We conducted a spatiotemporal stratified multi-city, school-based design to evaluate underexplored risk patterns of fine particulate matter with an aerodynamic diameter = 1 mu m, nitrate, sulfate, ammonium, chloride, black carbon, and temperature exposures including daily mean, extremes, and short-term variability. The analysis included 265,076 pneumonia and/or tracheitis cases among schoolchildren in Jiangsu Province, China. We observed significant urban-rural disparities and spatial clustering in air pollution and temperature variation. Cumulative exposure to all pollutants was positively associated with increased risk of illness-related absences, with stronger effects observed in urban schools and during low-temperature conditions overall. Boys showed higher initial sensitivity to air pollution, while girls exhibited greater vulnerability after 10-14 days. Notably, urban children were most affected by combined exposures to low temperature-high pollution, whereas rural children experienced greater combined risks under high-temperature conditions. In contrast, short-term temperature variability contributed minimally to the observed health effects. These findings support the development of early warning systems for composite exposures, informed by exposure-risk profiles, to enable timely school intervention and protect schoolchildren s respiratory health.