PM2.5 Chemical Composition at a Rural Background Site in Central Europe, Including Correlation and Air Mass Back Trajectory Analysis.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F16%3A00457965" target="_blank" >RIV/67985858:_____/16:00457965 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389005:_____/16:00457965

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.atmosres.2016.02.017" target="_blank" >http://dx.doi.org/10.1016/j.atmosres.2016.02.017</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.atmosres.2016.02.017" target="_blank" >10.1016/j.atmosres.2016.02.017</a>

Jazyk výsledku

angličtina

Název v původním jazyce

PM2.5 Chemical Composition at a Rural Background Site in Central Europe, Including Correlation and Air Mass Back Trajectory Analysis.

Popis výsledku v původním jazyce

PM2.5 mass concentrations and chemical compositions sampled over a 13-month period at a Central European rural background site (Kosetice) are presented in this work. A comprehensive chemical analysis of PM2.5 was performed, which provided elemental composition (Al, Si, S, CI, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Br, Rb, Sr, Y, Zr, and Pb) and the concentration of water-soluble inorganic anions (SO42-, NO3-. Cr, Br, and H2PO4-) and cations (Na+, NH4+, K+, Ca2+, and Mg2+), elemental and organic carbon (EC and OC), and levoglucosan. Spearman correlation coefficients between individual chemical species and particle number concentrations were calculated for the following six size ranges: 10-25 nm (N10-25), 25-50 nm (N25-50), 50-80 nm (N50-80), 801-50 nm (N80-150), 150-300 nm (N150-300), and 300-800 nm (N300-800). Average concentrations of individual species were comparable with concentrations reported from similar sites across Central Europe. Organic matter (OM) accounted for 45% of the PM2.5 mass (calculated from OC by a factor of 1.6), while the second most common component were secondary aerosols (SW: 19%, NO3-: 14%, NH4+: 10%), which accounted for 43% of the mass. Based on levoglucosan analysis, 31% of OM was attributed to emissions associated with biomass burning (OMBB). EC concentrations, determined using the EUSAAR_2 thermal optical protocol, contributed 4% to PM2.5 mass. A total of 1% of the mass was attributed to a mineral matter source, while the remaining 6% was from an undetermined mass. Seasonal variations showed highest concentrations of NO; and OMBB in winter, nitrate share in spring, and an increase in percentage of SO42- and mineral matter in summer. The largest seasonal variation was found for species associated with wood and coal combustion (levoglucosan, K+, Zn, Pb, As), which had clear maxima during winter.

Název v anglickém jazyce

PM2.5 Chemical Composition at a Rural Background Site in Central Europe, Including Correlation and Air Mass Back Trajectory Analysis.

Popis výsledku anglicky

PM2.5 mass concentrations and chemical compositions sampled over a 13-month period at a Central European rural background site (Kosetice) are presented in this work. A comprehensive chemical analysis of PM2.5 was performed, which provided elemental composition (Al, Si, S, CI, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Br, Rb, Sr, Y, Zr, and Pb) and the concentration of water-soluble inorganic anions (SO42-, NO3-. Cr, Br, and H2PO4-) and cations (Na+, NH4+, K+, Ca2+, and Mg2+), elemental and organic carbon (EC and OC), and levoglucosan. Spearman correlation coefficients between individual chemical species and particle number concentrations were calculated for the following six size ranges: 10-25 nm (N10-25), 25-50 nm (N25-50), 50-80 nm (N50-80), 801-50 nm (N80-150), 150-300 nm (N150-300), and 300-800 nm (N300-800). Average concentrations of individual species were comparable with concentrations reported from similar sites across Central Europe. Organic matter (OM) accounted for 45% of the PM2.5 mass (calculated from OC by a factor of 1.6), while the second most common component were secondary aerosols (SW: 19%, NO3-: 14%, NH4+: 10%), which accounted for 43% of the mass. Based on levoglucosan analysis, 31% of OM was attributed to emissions associated with biomass burning (OMBB). EC concentrations, determined using the EUSAAR_2 thermal optical protocol, contributed 4% to PM2.5 mass. A total of 1% of the mass was attributed to a mineral matter source, while the remaining 6% was from an undetermined mass. Seasonal variations showed highest concentrations of NO; and OMBB in winter, nitrate share in spring, and an increase in percentage of SO42- and mineral matter in summer. The largest seasonal variation was found for species associated with wood and coal combustion (levoglucosan, K+, Zn, Pb, As), which had clear maxima during winter.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Atmospheric Research

ISSN

0169-8095

e-ISSN

—

Svazek periodika

176-177

Číslo periodika v rámci svazku

JUL 1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

108-120

Kód UT WoS článku

000374625100010

EID výsledku v databázi Scopus

2-s2.0-84960155776