A European aerosol phenomenology -4: Harmonized concentrations of carbonaceous aerosol at 10 regional background sites across Europe. Atmospheric Environment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020699%3A_____%2F16%3AN0000036" target="_blank" >RIV/00020699:_____/16:N0000036 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

A European aerosol phenomenology -4: Harmonized concentrations of carbonaceous aerosol at 10 regional background sites across Europe. Atmospheric Environment

Original language description

Although particulate organic and elemental carbon (OC and EC) are important constituents of the suspended atmospheric particulate matter (PM) due to their potentially large impacts on human health and radiative forcing, measurements of OC and EC in PM are much more seldom and uncertain than measurements of e.g. the ionic components. In the frame of atmospheric research infrastructures supported by the European Union, actions have been undertaken to determine and mitigate sampling artifacts, and assess the comparability of OC and EC data obtained in a network of 10 atmospheric observatories across Europe. Seasonal mean positive artifacts ranged 0.4 – 2.8 µg/m³ without denuder and 0.1 – 0.5 µg/m³ when a carbon denuder was implemented. From annual inter-laboratory comparisons, we saw that the standard deviation among all participants was generally within ± 20% for total carbon (TC), and that systematic differences in the determination of the EC/TC ratio ranged 0.5 – 1.4 compared to the reference value. Sampling artifacts and analytical discrepancies have been taken into account to build up a robust data set. From this, we established the phenomenology of carbonaceous aerosols at regional background sites in Europe. Across the network, TC and EC annual average concentrations ranged 0.4 – 9 and 0.1 – 2 µg/m³, respectively. TC/PM10 range 0.11 at Mediterranean sites to 0.33 in the most polluted area, while TC/PM2.5 ratios are slightly greater at all sites (0.15 – 0.42). EC/TC ratios range 0.10 – 0.23, and do not depend much on PM concentrations, especially in winter. Seasonal variations in PM, TC concentrations, and in TC/PM, EC/TC ratios differ across the networks, and can be explained by change in sources at certain sites.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DI - Pollution and air control

OECD FORD branch

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Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2016

Confidentiality

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

Name of the periodical

Atmospheric Environment

ISSN

1352-2310

e-ISSN

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Volume of the periodical

10.1016

Issue of the periodical within the volume

2016.07.050.

Country of publishing house

FR - FRANCE

Number of pages

13

Pages from-to

133-145

UT code for WoS article

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EID of the result in the Scopus database

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