Positive matrix factorization of seasonally resolved organic aerosol at three different Central European background sites based on nuclear magnetic resonance Aerosolomics data

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F24%3A00581636" target="_blank" >RIV/67985858:_____/24:00581636 - isvavai.cz</a>

Result on the web

<a href="https://hdl.handle.net/11104/0349747" target="_blank" >https://hdl.handle.net/11104/0349747</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.scitotenv.2024.170303" target="_blank" >10.1016/j.scitotenv.2024.170303</a>

Result language

angličtina

Original language name

Positive matrix factorization of seasonally resolved organic aerosol at three different Central European background sites based on nuclear magnetic resonance Aerosolomics data

Original language description

Concentration data derived from 1 14 H NMR analysis of the water-soluble organic compounds from fine aerosol (PM2.5) at three Central European background stations, Košetice, Frýdlant (both in the Czech Republic), and Melpitz (Germany), were used for detailed source apportionment analysis. Two winter and two summer episodes (year 2021) with higher organic concentrations and similar wind directions were selected for NMR analyses. The concentration profiles of 61 water-soluble organic compounds were determined by NMR Aerosolomics and a principal component analysis (PCA) was performed on this dataset. Based on the PCA results, 23 compounds were selected for positive matrix factorization (PMF) analysis in order to identify dominant aerosol sources at rural background sites in Central Europe. Both the PCA and the subsequent PMF analyses clearly distinguished the characteristics of winter and summer aerosol particles. In summer, four factors were identified from PMF and were associated with biogenic aerosol (61-78%), background aerosol (9-15%), industrial biomass combustion (7-13%), and residential heating (5-13%). In winter, only 3 factors were identified - industrial biomass combustion (33-49%), residential heating (37-45%) and a background aerosol (8-30%). The main difference was observed in the winter season with a stronger contribution of emissions from industrial biomass burning at the Czech stations Košetice and Frýdlant (47-49%) compared to the Melpitz station (33%). However, in general, there were negligible differences in identified sources between stations in the given seasons, indicating a n31 certain homogeneity in PM2.5 composition within Central Europe at least during the sampling periods.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10509 - Meteorology and atmospheric sciences

Project

<a href="/en/project/GC20-08304J" target="_blank" >GC20-08304J: Transport and transformation of atmospheric aerosol across Central Europe with emphasis on anthropogenic sources</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Science of the Total Environment

ISSN

0048-9697

e-ISSN

1879-1026

Volume of the periodical

916

Issue of the periodical within the volume

15 March

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

18

Pages from-to

170303

UT code for WoS article

001173751500001

EID of the result in the Scopus database

2-s2.0-85183951946