气候变化领域集成服务门户(CCPortal): Air pollution from wildfires and human health vulnerability in Alaskan communities under climate change

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DOI	10.1088/1748-9326/ab9270
	Air pollution from wildfires and human health vulnerability in Alaskan communities under climate change
	Woo S.H.L.; Liu J.C.; Yue X.; Mickley L.J.; Bell M.L.
发表日期	2020
ISSN	17489318
卷号	15 期号:9
英文摘要	Alaskan wildfires are becoming more frequent and severe, but very little is known regarding exposure to wildfire smoke, a risk factor for respiratory and cardiovascular illnesses. We estimated long-term, present-day and future exposure to wildfire-related fine particulate matter (PM2.5) across Alaska for the general population and subpopulations to assess vulnerability using observed data for the present day (1997-2010), modelled estimates for the present day (1997-2001), and modelled estimates for the future (2047-2051). First, we assessed wildfire-PM2.5 exposure by estimating monthly-average wildfire-specific PM2.5 levels across 1997-2010 for 158 Alaskan census tracts, using atmospheric transport modelling based on observed area-burned data. Second, we estimated changes in future (2047-2051) wildfire-PM2.5 exposure compared to the present-day (1997-2001) by estimating the monthly-average wildfire-specific PM2.5 levels for 29 boroughs/census areas (county-equivalent areas), under the Intergovernmental Panel on Climate Change (IPCC) A1B scenario from an ensemble of 13 climate models. Subpopulation risks for present and future exposure levels were estimated by summing area-weighted exposure levels utilizing the 2000 Census and State of Alaska's population projections. We assessed vulnerability by several subpopulation characteristics (e.g. race/ethnicity, urbanicity). Wildfire-PM2.5 exposure levels during 1997-2010 were highest in interior Alaska during July. Among subpopulations, average summer (June-August) exposure levels for urban dwellers and African-American/Blacks were highest at 9.1 µg m-3 and 10 µg m-3, respectively. Estimated wildfire-PM2.5 varied by Native American tribe, ranging from average summer levels of 2.4 µg m-3 to 13 µg m-3 for Tlingit-Haida and Alaskan Athabascan tribes, respectively. Estimates indicate that by the mid-21st century, under climate change, almost all of Alaska could be exposed to increases of 100% or more in levels of wildfire-specific PM2.5 levels. Exposure to wildfire-PM2.5 likely presents a substantial public health burden in the present day for Alaska communities, with different impacts by subpopulation. Under climate change, wildfire smoke could pose an even greater public health risks for most Alaskans. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	air pollution; Alaska; environmental justice; particulate matter; PM2.5; smoke; wildfire
语种	英语
scopus关键词	Atmospheric movements; Climate models; Fires; Health risks; Population statistics; Public health; Public risks; Risk perception; Smoke; Surveys; African American; Atmospheric transport; Equivalent areas; Exposure level; Fine particulate matter (PM2.5); General population; Intergovernmental panel on climate changes; Native American Tribes; Climate change; atmospheric modeling; atmospheric pollution; atmospheric transport; cardiovascular disease; climate change; Intergovernmental Panel on Climate Change; particulate matter; public health; respiratory disease; risk factor; smoke; subpopulation; vulnerability; wildfire; Alaska; United States
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153790
作者单位	School of Forestry and Environmental Studies, Yale University, New Haven, CT, United States; Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States; Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States
推荐引用方式 GB/T 7714	Woo S.H.L.,Liu J.C.,Yue X.,et al. Air pollution from wildfires and human health vulnerability in Alaskan communities under climate change[J],2020,15(9).
APA	Woo S.H.L.,Liu J.C.,Yue X.,Mickley L.J.,&Bell M.L..(2020).Air pollution from wildfires and human health vulnerability in Alaskan communities under climate change.Environmental Research Letters,15(9).
MLA	Woo S.H.L.,et al."Air pollution from wildfires and human health vulnerability in Alaskan communities under climate change".Environmental Research Letters 15.9(2020).