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DOI	10.1016/j.atmosres.2020.104846
	Assessing the variations in the chemical composition of rainwater and air masses using the zonal and meridional index
	Keresztesi Á.; Nita I.-A.; Birsan M.-V.; Bodor Z.; Pernyeszi T.; Micheu M.M.; Szép R.
发表日期	2020
ISSN	0169-8095
卷号	237
英文摘要	The chemical composition of rainwater was studied from January 2009 to December 2017 in the northern group of Eastern Carpathians, Romania, taking under consideration air mass trajectories, the zonal index and zonal circulations, to show the imprints of long-range transported pollutants on the precipitation chemistry. Rainwater samples were analyzed for pH, major anions and cations. The relative dominance of ions among sampling sites was quite similar, Ca2+ and SO4 2− being the most abundant. Neutralization was primarily brought by Ca2+, followed by NH4 +, proven by the ionic ratios, neutralization factors, neutralizing and acidic potential, and the significant correlation coefficients between the sum of alkaline species (Ca2+ + Mg2+ + NH4 +) and the sum of acidic species (NO3 − + SO4 2−). Source apportionment showed the relative contributions of marine, crustal and anthropogenic sources to the total chemical composition of rainwater, indicating the significant influence of anthropogenic activities (mining, coal combustion) but the imprints of soil derived ions and sea salts can also be observed. The cluster analysis of air mass back trajectories showed that the studied region's climate and the atmospheric chemistry may have been influenced by long-range transported pollutants originated from NW and SW part of the continent. Zonal circulations and the daily zonal index using ERA Interim were constructed, demonstrating the greater influence of air masses coming from NW and SW, highlighting the polluting sources outside the European Union. © 2020 Elsevier B.V.
英文关键词	Atmospheric circulations; ERA Interim; Meridional Index; Rainwater chemistry; Source apportionment; Zonal Index
学科领域	Alkalinity; Chemical analysis; Cluster analysis; Coal combustion; Ions; Meteorology; Pollution; Atmospheric circulation; Era interims; Meridional Index; Rainwater chemistry; Source apportionment; Zonal Index; Atmospheric chemistry; air mass; atmospheric circulation; chemical composition; long range transport; pollutant transport; precipitation (chemistry); rainwater; source apportionment; water chemistry; Carpathians; Eastern Carpathians; Romania
语种	英语
scopus关键词	Alkalinity; Chemical analysis; Cluster analysis; Coal combustion; Ions; Meteorology; Pollution; Atmospheric circulation; Era interims; Meridional Index; Rainwater chemistry; Source apportionment; Zonal Index; Atmospheric chemistry; air mass; atmospheric circulation; chemical composition; long range transport; pollutant transport; precipitation (chemistry); rainwater; source apportionment; water chemistry; Carpathians; Eastern Carpathians; Romania
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120463
作者单位	University of Pécs, Faculty of Natural Sciences, Doctoral School of Chemistry, Ifjúság 6, Pécs, 7624, Hungary; Alexandru Ioan Cuza University, Faculty of Geography and Geology, Doctoral School of Geosciences, Bulevardul Carol I 11, Iași, 700506, Romania; Meteo Romania (National Meteorological Administration), Soseaua București-Ploiești 97, Bucharest, 013686, Romania; Sapientia Hungarian University of Transylvania, Faculty of Economics, Socio - Human Science and Engineering, Department of Bioengineering, Piaţa Libertăţii 1, Miercurea Ciuc, 530104, Romania; Clinical Emergency Hospital of Bucharest, Calea Floreasca 8, 014461, Bucharest, Romania; Institute for Research and Development for Hunting and Mountain Resources, Progresului 35B, Miercurea Ciuc, 530240, Romania
推荐引用方式 GB/T 7714	Keresztesi Á.,Nita I.-A.,Birsan M.-V.,et al. Assessing the variations in the chemical composition of rainwater and air masses using the zonal and meridional index[J],2020,237.
APA	Keresztesi Á..,Nita I.-A..,Birsan M.-V..,Bodor Z..,Pernyeszi T..,...&Szép R..(2020).Assessing the variations in the chemical composition of rainwater and air masses using the zonal and meridional index.Atmospheric Research,237.
MLA	Keresztesi Á.,et al."Assessing the variations in the chemical composition of rainwater and air masses using the zonal and meridional index".Atmospheric Research 237(2020).