Jing Zeng , Jian Qian , Jiayi Chen , Sheng Li , Junyu Wang , Menghan Yao , Qianqian Du , Na Yang , Tao Zhang , Fei Yin , Chenglin Tao , Xinyin Xu , Nan Wang , Menglu Jiang , Xingyu Zhang , Ying Deng , Yue Ma
{"title":"区域温度和湿度对日死亡率与细颗粒物和臭氧短期共暴露关系的修正作用","authors":"Jing Zeng , Jian Qian , Jiayi Chen , Sheng Li , Junyu Wang , Menghan Yao , Qianqian Du , Na Yang , Tao Zhang , Fei Yin , Chenglin Tao , Xinyin Xu , Nan Wang , Menglu Jiang , Xingyu Zhang , Ying Deng , Yue Ma","doi":"10.1016/j.atmosenv.2025.121369","DOIUrl":null,"url":null,"abstract":"<div><div>Previous studies assessing the synergistic impact of PM<sub>2.5</sub> and O<sub>3</sub> on mortality have demonstrated regional heterogeneity in results. A time series study based on 130 Chinese counties aimed to investigate the modification of regional temperature and humidity on this synergy effect. Synergy indices and analyses stratified by coexposure level were applied to characterize the synergistic impacts of PM<sub>2.5</sub> and O<sub>3</sub> on mortality. Modification effects of temperature and relative humidity were evaluated by stratified analyses. Deaths attributable to PM<sub>2.5</sub> and O<sub>3</sub> were calculated both with and without considering their synergy, as well as the influences of regional temperature and relative humidity. The increases in cardiorespiratory mortality every 10 <span><math><mrow><mi>μ</mi></mrow></math></span> g/m<sup>3</sup> rise in PM<sub>2.5</sub> and O<sub>3</sub> are significantly greater under high O<sub>3</sub> (2 %) and PM<sub>2.5</sub> (1.10 %) levels than under low O<sub>3</sub> (0.53 %) and PM<sub>2.5</sub> (0.86 %) levels. The synergistic effects were more pronounced in low-temperature areas for cardiovascular mortality and in low-humidity areas for respiratory mortality. Ignoring the synergistic impact of PM<sub>2.5</sub> and O<sub>3</sub> may lead to inaccurate estimates of attributable deaths, with the extent of inaccuracy influenced by temperature and relative humidity. Our study underscores the importance of considering meteorological factors when assessing the synergistic impact of PM<sub>2.5</sub> and O<sub>3</sub> to improve the accuracy of disease burden estimates and inform air pollution control policies.</div></div>","PeriodicalId":250,"journal":{"name":"Atmospheric Environment","volume":"358 ","pages":"Article 121369"},"PeriodicalIF":3.7000,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Modification effects of regional temperature and humidity on the relationship between daily mortality and short-term coexposure to fine particulate matter and ozone\",\"authors\":\"Jing Zeng , Jian Qian , Jiayi Chen , Sheng Li , Junyu Wang , Menghan Yao , Qianqian Du , Na Yang , Tao Zhang , Fei Yin , Chenglin Tao , Xinyin Xu , Nan Wang , Menglu Jiang , Xingyu Zhang , Ying Deng , Yue Ma\",\"doi\":\"10.1016/j.atmosenv.2025.121369\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Previous studies assessing the synergistic impact of PM<sub>2.5</sub> and O<sub>3</sub> on mortality have demonstrated regional heterogeneity in results. A time series study based on 130 Chinese counties aimed to investigate the modification of regional temperature and humidity on this synergy effect. Synergy indices and analyses stratified by coexposure level were applied to characterize the synergistic impacts of PM<sub>2.5</sub> and O<sub>3</sub> on mortality. Modification effects of temperature and relative humidity were evaluated by stratified analyses. Deaths attributable to PM<sub>2.5</sub> and O<sub>3</sub> were calculated both with and without considering their synergy, as well as the influences of regional temperature and relative humidity. The increases in cardiorespiratory mortality every 10 <span><math><mrow><mi>μ</mi></mrow></math></span> g/m<sup>3</sup> rise in PM<sub>2.5</sub> and O<sub>3</sub> are significantly greater under high O<sub>3</sub> (2 %) and PM<sub>2.5</sub> (1.10 %) levels than under low O<sub>3</sub> (0.53 %) and PM<sub>2.5</sub> (0.86 %) levels. The synergistic effects were more pronounced in low-temperature areas for cardiovascular mortality and in low-humidity areas for respiratory mortality. Ignoring the synergistic impact of PM<sub>2.5</sub> and O<sub>3</sub> may lead to inaccurate estimates of attributable deaths, with the extent of inaccuracy influenced by temperature and relative humidity. Our study underscores the importance of considering meteorological factors when assessing the synergistic impact of PM<sub>2.5</sub> and O<sub>3</sub> to improve the accuracy of disease burden estimates and inform air pollution control policies.</div></div>\",\"PeriodicalId\":250,\"journal\":{\"name\":\"Atmospheric Environment\",\"volume\":\"358 \",\"pages\":\"Article 121369\"},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2025-06-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Atmospheric Environment\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1352231025003449\",\"RegionNum\":2,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Atmospheric Environment","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1352231025003449","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Modification effects of regional temperature and humidity on the relationship between daily mortality and short-term coexposure to fine particulate matter and ozone
Previous studies assessing the synergistic impact of PM2.5 and O3 on mortality have demonstrated regional heterogeneity in results. A time series study based on 130 Chinese counties aimed to investigate the modification of regional temperature and humidity on this synergy effect. Synergy indices and analyses stratified by coexposure level were applied to characterize the synergistic impacts of PM2.5 and O3 on mortality. Modification effects of temperature and relative humidity were evaluated by stratified analyses. Deaths attributable to PM2.5 and O3 were calculated both with and without considering their synergy, as well as the influences of regional temperature and relative humidity. The increases in cardiorespiratory mortality every 10 g/m3 rise in PM2.5 and O3 are significantly greater under high O3 (2 %) and PM2.5 (1.10 %) levels than under low O3 (0.53 %) and PM2.5 (0.86 %) levels. The synergistic effects were more pronounced in low-temperature areas for cardiovascular mortality and in low-humidity areas for respiratory mortality. Ignoring the synergistic impact of PM2.5 and O3 may lead to inaccurate estimates of attributable deaths, with the extent of inaccuracy influenced by temperature and relative humidity. Our study underscores the importance of considering meteorological factors when assessing the synergistic impact of PM2.5 and O3 to improve the accuracy of disease burden estimates and inform air pollution control policies.
期刊介绍:
Atmospheric Environment has an open access mirror journal Atmospheric Environment: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Atmospheric Environment is the international journal for scientists in different disciplines related to atmospheric composition and its impacts. The journal publishes scientific articles with atmospheric relevance of emissions and depositions of gaseous and particulate compounds, chemical processes and physical effects in the atmosphere, as well as impacts of the changing atmospheric composition on human health, air quality, climate change, and ecosystems.