Composition and mass size distribution of nitrated and oxygenated aromatic compounds in ambient particulate matter from southern and central Europe - implications for the origin

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F20%3A00116071" target="_blank" >RIV/00216224:14310/20:00116071 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.atmos-chem-phys.net/20/2471/2020/" target="_blank" >https://www.atmos-chem-phys.net/20/2471/2020/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/acp-20-2471-2020" target="_blank" >10.5194/acp-20-2471-2020</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Composition and mass size distribution of nitrated and oxygenated aromatic compounds in ambient particulate matter from southern and central Europe - implications for the origin

Popis výsledku v původním jazyce

Nitro-monoaromatic hydrocarbons (NMAHs), such as nitrocatechols, nitrophenols and nitrosalicylic acids, are important constituents of atmospheric particulate matter (PM) water-soluble organic carbon (WSOC) and humic-like substances (HULIS). Nitrated and oxygenated derivatives of polycyclic aromatic hydrocarbons (NPAHs and OPAHs) are toxic and ubiquitous in the ambient air; due to their light absorption properties, together with NMAHs, they are part of aerosol brown carbon (BrC). We investigated the winter concentrations of these substance classes in size-resolved PM from two urban sites in central and southern Europe, i.e. Mainz (MZ), Germany, and Thessaloniki (TK), Greece. The total concentration of 11 NMAHs (Sigma(11)NMAH concentrations) measured in PM10 and total PM were 0.51-8.38 and 12.1-72.1 ng m(-3) at the MZ and TK sites, respectively, whereas Sigma(7)OPAHs were 47-1636 and 858-4306 pg m(-3), and Sigma(8)NPAHs were &lt;= 90 and 76-578 pg m(-3), respectively. NMAHs contributed 0.4% and 1.8% to the HULIS mass at MZ and TK, respectively. The mass size distributions of the individual substances generally peaked in the smallest or second smallest size fraction i.e. &lt; 0.49 or 0.49-0.95 mu m. The mass median diameter (MMD) of NMAHs was 0.10 and 0.27 mu m at MZ and TK, respectively, while the MMDs of NPAHs and OPAHs were both 0.06 mu m at MZ and 0.12 and 0.10 mu m at TK. Correlation analysis between NMAHs, NPAHs, and OPAHs from one side and WSOC, HULIS, sulfate, and potassium from the other suggested that fresh biomass burning (BB) and fossil fuel combustion emissions dominated at the TK site, while aged air masses were predominant at the MZ site.

Název v anglickém jazyce

Composition and mass size distribution of nitrated and oxygenated aromatic compounds in ambient particulate matter from southern and central Europe - implications for the origin

Popis výsledku anglicky

Nitro-monoaromatic hydrocarbons (NMAHs), such as nitrocatechols, nitrophenols and nitrosalicylic acids, are important constituents of atmospheric particulate matter (PM) water-soluble organic carbon (WSOC) and humic-like substances (HULIS). Nitrated and oxygenated derivatives of polycyclic aromatic hydrocarbons (NPAHs and OPAHs) are toxic and ubiquitous in the ambient air; due to their light absorption properties, together with NMAHs, they are part of aerosol brown carbon (BrC). We investigated the winter concentrations of these substance classes in size-resolved PM from two urban sites in central and southern Europe, i.e. Mainz (MZ), Germany, and Thessaloniki (TK), Greece. The total concentration of 11 NMAHs (Sigma(11)NMAH concentrations) measured in PM10 and total PM were 0.51-8.38 and 12.1-72.1 ng m(-3) at the MZ and TK sites, respectively, whereas Sigma(7)OPAHs were 47-1636 and 858-4306 pg m(-3), and Sigma(8)NPAHs were &lt;= 90 and 76-578 pg m(-3), respectively. NMAHs contributed 0.4% and 1.8% to the HULIS mass at MZ and TK, respectively. The mass size distributions of the individual substances generally peaked in the smallest or second smallest size fraction i.e. &lt; 0.49 or 0.49-0.95 mu m. The mass median diameter (MMD) of NMAHs was 0.10 and 0.27 mu m at MZ and TK, respectively, while the MMDs of NPAHs and OPAHs were both 0.06 mu m at MZ and 0.12 and 0.10 mu m at TK. Correlation analysis between NMAHs, NPAHs, and OPAHs from one side and WSOC, HULIS, sulfate, and potassium from the other suggested that fresh biomass burning (BB) and fossil fuel combustion emissions dominated at the TK site, while aged air masses were predominant at the MZ site.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Atmospheric Chemistry and Physics

ISSN

1680-7316

e-ISSN

1680-7324

Svazek periodika

20

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

17

Strana od-do

2471-2487

Kód UT WoS článku

000518768800001

EID výsledku v databázi Scopus

2-s2.0-85082396699