Kamal J Maji, Zongrun Li, Ambarish Vaidyanathan, Yongtao Hu, Jennifer D Stowell, Chad Milando, Gregory Wellenius, Patrick L Kinney, Armistead G Russell, M Talat Odman
{"title":"2015-2020 年美国佐治亚州及周边地区规定火灾对空气质量和过早死亡的影响估计。","authors":"Kamal J Maji, Zongrun Li, Ambarish Vaidyanathan, Yongtao Hu, Jennifer D Stowell, Chad Milando, Gregory Wellenius, Patrick L Kinney, Armistead G Russell, M Talat Odman","doi":"10.1021/acs.est.4c00890","DOIUrl":null,"url":null,"abstract":"<p><p>Smoke from wildfires poses a substantial threat to health in communities near and far. To mitigate the extent and potential damage of wildfires, prescribed burning techniques are commonly employed as land management tools; however, they introduce their own smoke-related risks. This study investigates the impact of prescribed fires on daily average PM<sub>2.5</sub> and maximum daily 8-h averaged O<sub>3</sub> (MDA8-O<sub>3</sub>) concentrations and estimates premature deaths associated with short-term exposure to prescribed fire PM<sub>2.5</sub> and MDA8-O<sub>3</sub> in Georgia and surrounding areas of the Southeastern US from 2015 to 2020. Our findings indicate that over the study domain, prescribed fire contributes to average daily PM<sub>2.5</sub> by 0.94 ± 1.45 μg/m<sup>3</sup> (mean ± standard deviation), accounting for 14.0% of year-round ambient PM<sub>2.5</sub>. Higher average daily contributions were predicted during the extensive burning season (January-April): 1.43 ± 1.97 μg/m<sup>3</sup> (20.0% of ambient PM<sub>2.5</sub>). Additionally, prescribed burning is also responsible for an annual average increase of 0.36 ± 0.61 ppb in MDA8-O<sub>3</sub> (approximately 0.8% of ambient MDA8-O<sub>3</sub>) and 1.3% (0.62 ± 0.88 ppb) during the extensive burning season. We estimate that short-term exposure to prescribed fire PM<sub>2.5</sub> and MDA8-O<sub>3</sub> could have caused 2665 (95% confidence interval (CI): 2249-3080) and 233 (95% CI: 148-317) excess deaths, respectively. These results suggest that smoke from prescribed burns increases the mortality. However, refraining from such burns may escalate the risk of wildfires; therefore, the trade-offs between the health impacts of wildfires and prescribed fires, including morbidity, need to be taken into consideration in future studies.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":null,"pages":null},"PeriodicalIF":10.8000,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Estimated Impacts of Prescribed Fires on Air Quality and Premature Deaths in Georgia and Surrounding Areas in the US, 2015-2020.\",\"authors\":\"Kamal J Maji, Zongrun Li, Ambarish Vaidyanathan, Yongtao Hu, Jennifer D Stowell, Chad Milando, Gregory Wellenius, Patrick L Kinney, Armistead G Russell, M Talat Odman\",\"doi\":\"10.1021/acs.est.4c00890\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Smoke from wildfires poses a substantial threat to health in communities near and far. To mitigate the extent and potential damage of wildfires, prescribed burning techniques are commonly employed as land management tools; however, they introduce their own smoke-related risks. This study investigates the impact of prescribed fires on daily average PM<sub>2.5</sub> and maximum daily 8-h averaged O<sub>3</sub> (MDA8-O<sub>3</sub>) concentrations and estimates premature deaths associated with short-term exposure to prescribed fire PM<sub>2.5</sub> and MDA8-O<sub>3</sub> in Georgia and surrounding areas of the Southeastern US from 2015 to 2020. Our findings indicate that over the study domain, prescribed fire contributes to average daily PM<sub>2.5</sub> by 0.94 ± 1.45 μg/m<sup>3</sup> (mean ± standard deviation), accounting for 14.0% of year-round ambient PM<sub>2.5</sub>. Higher average daily contributions were predicted during the extensive burning season (January-April): 1.43 ± 1.97 μg/m<sup>3</sup> (20.0% of ambient PM<sub>2.5</sub>). Additionally, prescribed burning is also responsible for an annual average increase of 0.36 ± 0.61 ppb in MDA8-O<sub>3</sub> (approximately 0.8% of ambient MDA8-O<sub>3</sub>) and 1.3% (0.62 ± 0.88 ppb) during the extensive burning season. We estimate that short-term exposure to prescribed fire PM<sub>2.5</sub> and MDA8-O<sub>3</sub> could have caused 2665 (95% confidence interval (CI): 2249-3080) and 233 (95% CI: 148-317) excess deaths, respectively. These results suggest that smoke from prescribed burns increases the mortality. However, refraining from such burns may escalate the risk of wildfires; therefore, the trade-offs between the health impacts of wildfires and prescribed fires, including morbidity, need to be taken into consideration in future studies.</p>\",\"PeriodicalId\":36,\"journal\":{\"name\":\"环境科学与技术\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":10.8000,\"publicationDate\":\"2024-06-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"环境科学与技术\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.est.4c00890\",\"RegionNum\":1,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"环境科学与技术","FirstCategoryId":"1","ListUrlMain":"https://doi.org/10.1021/acs.est.4c00890","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
Estimated Impacts of Prescribed Fires on Air Quality and Premature Deaths in Georgia and Surrounding Areas in the US, 2015-2020.
Smoke from wildfires poses a substantial threat to health in communities near and far. To mitigate the extent and potential damage of wildfires, prescribed burning techniques are commonly employed as land management tools; however, they introduce their own smoke-related risks. This study investigates the impact of prescribed fires on daily average PM2.5 and maximum daily 8-h averaged O3 (MDA8-O3) concentrations and estimates premature deaths associated with short-term exposure to prescribed fire PM2.5 and MDA8-O3 in Georgia and surrounding areas of the Southeastern US from 2015 to 2020. Our findings indicate that over the study domain, prescribed fire contributes to average daily PM2.5 by 0.94 ± 1.45 μg/m3 (mean ± standard deviation), accounting for 14.0% of year-round ambient PM2.5. Higher average daily contributions were predicted during the extensive burning season (January-April): 1.43 ± 1.97 μg/m3 (20.0% of ambient PM2.5). Additionally, prescribed burning is also responsible for an annual average increase of 0.36 ± 0.61 ppb in MDA8-O3 (approximately 0.8% of ambient MDA8-O3) and 1.3% (0.62 ± 0.88 ppb) during the extensive burning season. We estimate that short-term exposure to prescribed fire PM2.5 and MDA8-O3 could have caused 2665 (95% confidence interval (CI): 2249-3080) and 233 (95% CI: 148-317) excess deaths, respectively. These results suggest that smoke from prescribed burns increases the mortality. However, refraining from such burns may escalate the risk of wildfires; therefore, the trade-offs between the health impacts of wildfires and prescribed fires, including morbidity, need to be taken into consideration in future studies.
期刊介绍:
Environmental Science & Technology (ES&T) is a co-sponsored academic and technical magazine by the Hubei Provincial Environmental Protection Bureau and the Hubei Provincial Academy of Environmental Sciences.
Environmental Science & Technology (ES&T) holds the status of Chinese core journals, scientific papers source journals of China, Chinese Science Citation Database source journals, and Chinese Academic Journal Comprehensive Evaluation Database source journals. This publication focuses on the academic field of environmental protection, featuring articles related to environmental protection and technical advancements.