Highly Time-Resolved Elemental Source Apportionment at a Prague Urban Traffic Site

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F24%3A00585768" target="_blank" >RIV/67985858:_____/24:00585768 - isvavai.cz</a>

Výsledek na webu

<a href="https://aaqr.org/articles/aaqr-24-02-oa-0058.pdf" target="_blank" >https://aaqr.org/articles/aaqr-24-02-oa-0058.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4209/aaqr.240058" target="_blank" >10.4209/aaqr.240058</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Highly Time-Resolved Elemental Source Apportionment at a Prague Urban Traffic Site

Popis výsledku v původním jazyce

Positive Matrix Factorization was used for source apportionment of 2-hour online metals (Xact625i, PM2.5) and elemental and organic carbon (EC/OC analyser, PM1) data at an urban traffic site in Prague, Czech Republic, for two month-long periods in spring (February – March) and winter (November – December), 2020 (400 samples). Five factors were obtained for spring: Local heating (39%), Soil/road dust (21%), Secondary inorganic aerosol (20%), Traffic (12%), and Road salt (9%), while four factors were resolved for winter: Local heating (20%), Soil/road dust (31%), Secondary inorganic aerosol (SIA, 36%), and Traffic (13%). Aside from SIA, the sources were of local origins. Air mass back trajectories calculated by HYSPLIT and concentration weighted trajectories (CWT) were used to identify long-distance sources. Greater PM concentrations during winter (~3 times greater) wereattributed to both lower boundary layer heights and more abundant air masses from Central Europe, compared to more marine air masses during spring.

Název v anglickém jazyce

Highly Time-Resolved Elemental Source Apportionment at a Prague Urban Traffic Site

Popis výsledku anglicky

Positive Matrix Factorization was used for source apportionment of 2-hour online metals (Xact625i, PM2.5) and elemental and organic carbon (EC/OC analyser, PM1) data at an urban traffic site in Prague, Czech Republic, for two month-long periods in spring (February – March) and winter (November – December), 2020 (400 samples). Five factors were obtained for spring: Local heating (39%), Soil/road dust (21%), Secondary inorganic aerosol (20%), Traffic (12%), and Road salt (9%), while four factors were resolved for winter: Local heating (20%), Soil/road dust (31%), Secondary inorganic aerosol (SIA, 36%), and Traffic (13%). Aside from SIA, the sources were of local origins. Air mass back trajectories calculated by HYSPLIT and concentration weighted trajectories (CWT) were used to identify long-distance sources. Greater PM concentrations during winter (~3 times greater) wereattributed to both lower boundary layer heights and more abundant air masses from Central Europe, compared to more marine air masses during spring.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

<a href="/cs/project/LTAUSA19006" target="_blank" >LTAUSA19006: Studium velikostních distribucí a identifikace zdrojů submikronových částic atmosférického aerosolu</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Aerosol and Air Quality Research

ISSN

1680-8584

e-ISSN

2071-1409

Svazek periodika

24

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

TW - Čínská republika (Tchaj-wan)

Počet stran výsledku

17

Strana od-do

240058

Kód UT WoS článku

001282767100004

EID výsledku v databázi Scopus

2-s2.0-85200705140