气候变化领域集成服务门户(CCPortal): Model-measurement consistency and limits of bioaerosol abundance over the continental United States

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DOI	10.5194/acp-19-13859-2019
	Model-measurement consistency and limits of bioaerosol abundance over the continental United States
	Zawadowicz M.A.; Froyd K.D.; Perring A.E.; Murphy D.M.; Spracklen D.V.; Heald C.L.; Buseck P.R.; Cziczo D.J.
发表日期	2019
ISSN	16807316
起始页码	13859
结束页码	13870
卷号	19 期号:22
英文摘要	Due to low concentrations and chemical complexity, in situ observations of bioaerosol are geographically and temporally sparse, and this limits the accuracy of current emissions inventories. In this study, we apply a new methodology, including corrections for misidentification of mineral dust, to measurements of single particles over four airborne sampling campaigns to derive vertical profiles of bioaerosol over the continental United States. The new methodology is based on single-particle mass spectrometry (SPMS); it can extend historic datasets to include measurements of bioaerosol, it allows comparisons to other techniques, and it generally agrees with a global aerosol model. In the locations sampled, bioaerosols were at least a factor of 10 less abundant than mineral dust. Below 2 km, bioaerosol concentrations were measured between 6×103 and 2×104 m-3. Between 2 and 8 km, bioaerosol concentrations were between 0 and 2 × 104 m-3, and above 8 km, bioaerosol concentrations were between 0 and 1 × 103 m-3. Between 30 % and 80 % of single bioaerosol particles detected were internally mixed with dust. A direct comparison of the SPMS methodology with a co-located wideband integrated bioaerosol sensor (WIB) fluorescence sensor on a mountaintop site showed agreement to within a factor of 3 over the common size range. © 2017 Georg Thieme Verlag. All rights reserved.
语种	英语
scopus关键词	abundance estimation; aerosol; concentration (composition); data set; dust; mass spectrometry; United States
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144036
作者单位	Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, United States; Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, United States; Cooperative Institute for Research in Environmental Science, University of Colorado, Boulder, CO, United States; School of Earth and Environment, University of Leeds, Leeds, United Kingdom; Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States; School of Earth and Space Exploration, Arizona State University, Tempe, AZ, United States; Department of Earth, Atmospheric and Planetary Sciences, Purdue University, West Lafayette, IN, United States; Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States; Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, NY, United States
推荐引用方式 GB/T 7714	Zawadowicz M.A.,Froyd K.D.,Perring A.E.,et al. Model-measurement consistency and limits of bioaerosol abundance over the continental United States[J],2019,19(22).
APA	Zawadowicz M.A..,Froyd K.D..,Perring A.E..,Murphy D.M..,Spracklen D.V..,...&Cziczo D.J..(2019).Model-measurement consistency and limits of bioaerosol abundance over the continental United States.Atmospheric Chemistry and Physics,19(22).
MLA	Zawadowicz M.A.,et al."Model-measurement consistency and limits of bioaerosol abundance over the continental United States".Atmospheric Chemistry and Physics 19.22(2019).