Chemical characterization of PM2.5 from region highly impacted by hailstorms in South America

被引：4
作者：
Beal, Alexandra [1 ,2 ]
Martins, Jorge A. [2 ]
Rudke, Anderson P. [3 ]
de Almeida, Daniela S. [4 ]
da Silva, Iara [2 ,5 ]
Sobrinho, Otavio Medeiros [2 ]
Andrade, Maria de Fatima [5 ]
Tarley, Cesar R. T. [1 ,6 ]
Martins, Leila D. [2 ]
机构：
[1] Univ Estadual Londrina, Rodovia Celso Garcia Cid 445 Km 380, BR-86057970 Londrina, Parana, Brazil
[2] Univ Tecnol Fed Parana, Av Pioneiros 3131, BR-86036370 Londrina, Parana, Brazil
[3] Univ Fed Minas Gerais, Av Presidente Antonio Carlos 6627, BR-31270901 Belo Horizonte, MG, Brazil
[4] Univ Fed Sao Carlos, Rod Washington Luiz,Km 235,SP310, BR-13565905 Sao Carlos, SP, Brazil
[5] Univ Sao Paulo, Dept Atmospher Sci, Sao Paulo, SP, Brazil
[6] Univ Estadual Campinas UNICAMP, Inst Quim, Inst Nacl Ciencia & Tecnol INCT Bioanalit, Dept Quim Analit, BR-13083970 Campinas, SP, Brazil
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2022年 / 29卷 / 04期
关键词：
PM2.5; composition; Ions; Metals; Metalloids; ISORROPIA II; PMF; Hail; POSITIVE MATRIX FACTORIZATION; TRACE-ELEMENT CONTENTS; SAO-PAULO MEGACITY; WATER-SOLUBLE IONS; PARTICULATE MATTER; ATMOSPHERIC AEROSOL; ICE NUCLEATION; MINERAL DUST; MASS CONCENTRATIONS; ROAD TUNNELS;
D O I：
10.1007/s11356-021-15952-6
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The chemical composition of particulate material plays an important role in the atmosphere, providing cloud and ice nuclei for storm development. This study aims to evaluate and infer the sources of ions, metals, and metalloids in the fine atmospheric particulate matter (PM2.5) from triple border Parana, Santa Catarina (Brazil), and northeastern Argentina, which is among those with the highest hail incidence in the world. Among the ions, the concentrations presented the following sequence in decreasing order: SO42- > K+ > NH4+ > NO3- > Ca2+> Cl-> Na+> Mg2+. Regarding the metals and metalloid concentrations, the order was of S > Si > Al > Fe > P > Ti, Cr, Cu, and Zn > Br > Mn, and Ni. The main sources, supported by positive matrix factorization results, are soil and agricultural activities, as well as vehicular emissions due to the agricultural machinery and the displacement of residents. Besides, the influence of aerosols from biomass burning and industrial activities was observed, possibly come from long-distance transport. The composition of PM2.5 presents one or more elements considered present ice nuclei (IN) activity, such as Al, Mn, Cu, Co, Ni, and V (in form of oxides), corroborating with other studies, also, with high hail incidence. However, further studies are needed to verify the role of aerosol characteristics in the formation of IN and, consequently, hail.
引用
收藏
页码：5840 / 5851
页数：12
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