气候变化领域集成服务门户(CCPortal): Contrasting wet deposition composition between three diverse islands and coastal North American sites

CCPortal

DOI	10.1016/j.atmosenv.2020.117919
	Contrasting wet deposition composition between three diverse islands and coastal North American sites
	Ma L.; Dadashazar H.; Hilario M.R.A.; Cambaliza M.O.; Lorenzo G.R.; Simpas J.B.; Nguyen P.; Sorooshian A.
发表日期	2021
ISSN	1352-2310
卷号	244
英文摘要	This study examined spatial variations of precipitation accumulation and chemistry for six sites located on the West and East Coasts of the U.S., and one site each on the islands of Hawaii, Bermuda, and Luzon of the Philippines (specifically Manila). The nine coastal sites ranged widely in both mean annual precipitation accumulation, ranging from 40 cm (Mauna Loa, Hawaii) to 275 cm (Washington), and in terms of monthly profiles. The three island sites represented the extremes of differences in terms of chemical profiles, with Bermuda having the highest overall ion concentrations driven mainly by sea salt, Hawaii having the highest SO42− mass fractions due to the nearby influence of volcanic SO2 emissions and mid-tropospheric transport of anthropogenic pollution, and Manila exhibiting the highest concentration of non-marine ions (NH4+, non-sea salt [nss] SO42−, nss Ca2+, NO3−, nss K+, nss Na+, nss Mg2+) linked to anthropogenic, biomass burning, and crustal emissions. The Manila site exhibited the most variability in composition throughout the year due to shifting wind directions and having diverse regional and local pollutant sources. In contrast to the three island sites, the North American continental sites exhibited less variability in precipitation composition with sea salt being the most abundant constituent followed by some combination of SO42−, NO3−, and NH4+. The mean-annual pH values ranged from 4.88 (South Carolina) to 5.40 (central California) with NH4+ exhibiting the highest neutralization factors for all sites except Bermuda where dust tracer species (nss Ca2+) exhibited enhanced values. The results of this study highlight the sensitivity of wet deposition chemistry to regional considerations, elevation, time of year, and atmospheric circulations. © 2020 Elsevier Ltd
关键词	Acidity ACTIVATE CAMP2Ex Neutralization factor Precipitation chemistry Wet deposition
语种	英语
scopus关键词	Atmospheric chemistry; Marine pollution; Sulfur dioxide; Anthropogenic pollution; Atmospheric circulation; Chemical profiles; Ion concentrations; Mean annual precipitation; Neutralization factor; Pollutant sources; Spatial variations; Deposition; ion; ionic composition; island state; neutralization; pH; pollutant source; precipitation assessment; precipitation quality; sea salt; seasonality; tracer; wet deposition; Article; Bermuda; biomass; carbon footprint; chemical analysis; coastal plain; concentration ratio; Hawaii; island (geological); North American; priority journal; wet deposition; Alexander County [North Carolina]; Bermuda; California; Hawaii; Hawaii [(ISL) Hawaiian Islands]; Hawaii [United States]; Hawaiian Islands; Luzon; Manila; Mauna Loa; National Capital Region; North Carolina; Philippines; South Carolina; United States; Washington
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/248824
作者单位	Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ, United States; Air Quality Dynamics Laboratory, Manila Observatory, Quezon City, 1108, Philippines; Department of Physics, Ateneo de Manila University, Quezon City, 1108, Philippines; Department of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ, United States; Department of Civil and Environmental Engineering, University of California-Irvine, Irvine, CA, United States
推荐引用方式 GB/T 7714	Ma L.,Dadashazar H.,Hilario M.R.A.,et al. Contrasting wet deposition composition between three diverse islands and coastal North American sites[J],2021,244.
APA	Ma L..,Dadashazar H..,Hilario M.R.A..,Cambaliza M.O..,Lorenzo G.R..,...&Sorooshian A..(2021).Contrasting wet deposition composition between three diverse islands and coastal North American sites.ATMOSPHERIC ENVIRONMENT,244.
MLA	Ma L.,et al."Contrasting wet deposition composition between three diverse islands and coastal North American sites".ATMOSPHERIC ENVIRONMENT 244(2021).