气候变化领域集成服务门户(CCPortal): Laboratory and field studies of ice-nucleating particles from open-lot livestock facilities in Texas

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DOI	10.5194/acp-21-14215-2021
	Laboratory and field studies of ice-nucleating particles from open-lot livestock facilities in Texas
	Hiranuma N.; Auvermann B.W.; Belosi F.; Bush J.; Cory K.M.; Georgakopoulos D.G.; Höhler K.; Hou Y.; Lacher L.; Saathoff H.; Santachiara G.; Shen X.; Steinke I.; Ullrich R.; Umo N.S.; Vepuri H.S.K.; Vogel F.; Möhler O.
发表日期	2021
ISSN	1680-7316
起始页码	14215
结束页码	14234
卷号	21 期号:18
英文摘要	In this work, an abundance of ice-nucleating particles (INPs) from livestock facilities was studied through laboratory measurements from cloud-simulation chamber experiments and field investigation in the Texas Panhandle. Surface materials from two livestock facilities, one in the Texas Panhandle and another from McGregor, Texas, were selected as dust proxies for laboratory analyses. These two samples possessed different chemical and biological properties. A combination of aerosol interaction and dynamics in the atmosphere (AIDA) measurements and offline ice spectrometry was used to assess the immersion freezing mode ice nucleation ability and efficiency of these proxy samples at temperatures above-29° C. A dynamic filter processing chamber was also used to complement the freezing efficiencies of submicron and supermicron particles collected from the AIDA chamber. For the field survey, periodic ambient particle sampling took place at four commercial livestock facilities from July 2017 to July 2019. INP concentrations of collected particles were measured using an offline freezing test system, and the data were acquired for temperatures between-5 and-25° C. Our AIDA laboratory results showed that the freezing spectra of two livestock dust proxies exhibited higher freezing efficiency than previously studied soil dust samples at temperatures below-25° C. Despite their differences in composition, the freezing efficiencies of both proxy livestock dust samples were comparable to each other. Our dynamic filter processing chamber results showed on average approximately 50% supermicron size dominance in the INPs of both dust proxies. Thus, our laboratory findings suggest the importance of particle size in immersion freezing for these samples and that the size might be a more important factor for immersion freezing of livestock dust than the composition. From a 3-year field survey, we measured a high concentration of ambient INPs of 1171.6±691.6L-1 (average±standard error) at-25° C for aerosol particles collected at the downwind edges of livestock facilities. An obvious seasonal variation in INP concentration, peaking in summer, was observed, with the maximum at the same temperature exceeding 10000L-1 on 23 July 2018. The observed high INP concentrations suggest that a livestock facility is a substantial source of INPs. The INP concentration values from our field survey showed a strong correlation with measured particulate matter mass concentration, which supports the importance of size in ice nucleation of particles from livestock facilities. © 2021 Naruki Hiranuma et al.
语种	英语
scopus关键词	aerosol; agricultural emission; biogeochemistry; concentration (composition); dust; field survey; laboratory method; livestock farming; particle size; Texas; 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/246556
作者单位	Department of Life Earth, and Environmental Sciences, West Texas AandM University, Canyon, TX 79016, United States; Texas AandM AgriLife Research, Amarillo, TX 79106, United States; Institute of Atmospheric Sciences and Climate, National Research Council, Bologna, 40129, Italy; Department of Environmental Toxicology, Texas Tech University, Lubbock, TX 79409, United States; Department of Crop Science, Agricultural University of Athens, Athens, 118 55, Greece; Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Karlsruhe, 76021, Germany; Department of Earth Atmospheric and Planetary Sciences, Purdue University, West Lafayette, IN 47907, United States; Atmospheric Sciences and Global Change, Pacific Northwest National Laboratory, Richland, WA 99354, United States
推荐引用方式 GB/T 7714	Hiranuma N.,Auvermann B.W.,Belosi F.,et al. Laboratory and field studies of ice-nucleating particles from open-lot livestock facilities in Texas[J],2021,21(18).
APA	Hiranuma N..,Auvermann B.W..,Belosi F..,Bush J..,Cory K.M..,...&Möhler O..(2021).Laboratory and field studies of ice-nucleating particles from open-lot livestock facilities in Texas.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(18).
MLA	Hiranuma N.,et al."Laboratory and field studies of ice-nucleating particles from open-lot livestock facilities in Texas".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.18(2021).