气候变化领域集成服务门户(CCPortal): Where air quality has been impacted by weather changes in the United States over the last 30 years?

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DOI	10.1016/j.atmosenv.2020.117360
	Where air quality has been impacted by weather changes in the United States over the last 30 years?
	Requia W.J.; Coull B.A.; Koutrakis P.
发表日期	2020
ISSN	13522310
卷号	224
英文摘要	Previous studies have contributed to the understanding on the impacts of weather on air pollution. Most of these investigations focused primarily on future climate scenarios, laboratory experiments, or weather trends-related air pollution at regional scale. In particular, an important limitation of the trends studies is that the estimated weather impact on air pollution may be underestimated or overestimated given that the regional scale does not capture the site-to-site variation of air pollution and weather. The primary objective of this research is to addresses this gap by quantifying weather-associated changes in air pollution at site location (air pollution sites) in the U.S between 1988 and 2018. We quantified the past weather-related increases CO, NO2, O3, nitrate, organic carbon, silicon, sodium, sulfate, and SO2 concentration using Generalized Additive Models (GAMs). We used a framework that derives “penalties” (weather penalty, in μg/m3, ppm or ppb per year) for each season (warm and cold). Three pollutants presented significant results (weather penalties), including CO, NO2, and O3. Our findings show significant spatio-temporal variation of climate impact on CO, NO2, and O3. For example, in the warm season we estimated a total penalty over the study period for the sites with the highest penalty on CO (site in Boise, Idaho), NO2 (site in New York City), and O3 (site in Tucson, Arizona) of 6.18 (95%CI: 0.30; 12.0) ppm, 182.04 (95%CI: 39.33; 324.72) ppb, and 0.09 (95%CI: 0.030; 0.150) ppm, respectively. In the cold season, the estimated total penalty for the sites with the highest penalty on CO (site in Los Angeles, California), NO2 (site in Washington, Pennsylvania), and O3 (site in Decatur, Illinois) was 12.01 (95%CI: 1.50; 22.50) ppm, 285.03 (95%CI: 14.37; 555.69) ppb, and −0.066 (95%CI: -0.120; −0.030) ppm, respectively. Our results should be of interest to policy makers to create future strategies related to environmental health and climate change. Climate models typically show large variation in projections of the key variables influencing pollution, and our model based on local scale allowed us to identify statistically robust results. © 2020 Elsevier Ltd
英文关键词	Air pollution; Climate impact; Trend analysis; Weather
语种	英语
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120717
作者单位	Harvard University, Department of Environmental Health, School of Public Health, Boston, MA, United States; Harvard University, Department of Biostatistics, School of Public Health, Boston, MA, United States; Getulio Vargas Foundation, School of Public Policy and Government, Brasília, DF, Brazil
推荐引用方式 GB/T 7714	Requia W.J.,Coull B.A.,Koutrakis P.. Where air quality has been impacted by weather changes in the United States over the last 30 years?[J],2020,224.
APA	Requia W.J.,Coull B.A.,&Koutrakis P..(2020).Where air quality has been impacted by weather changes in the United States over the last 30 years?.Atmospheric Environment,224.
MLA	Requia W.J.,et al."Where air quality has been impacted by weather changes in the United States over the last 30 years?".Atmospheric Environment 224(2020).