Articles | Volume 21, issue 9
Atmos. Chem. Phys., 21, 7149–7170, 2021
https://doi.org/10.5194/acp-21-7149-2021
Atmos. Chem. Phys., 21, 7149–7170, 2021
https://doi.org/10.5194/acp-21-7149-2021

Research article 11 May 2021

Research article | 11 May 2021

Trends, composition, and sources of carbonaceous aerosol at the Birkenes Observatory, northern Europe, 2001–2018

Karl Espen Yttri et al.

Data sets

EBAS NILU (Norwegian Institute for Air Research) http://ebas.nilu.no/

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Short summary
Carbonaceous aerosol sources and trends were studied at the Birkenes Observatory. A large decrease in elemental carbon (EC; 2001–2018) and a smaller decline in levoglucosan (2008–2018) suggest that organic carbon (OC)/EC from traffic/industry is decreasing, whereas the abatement of OC/EC from biomass burning has been less successful. Positive matrix factorization apportioned 72 % of EC to fossil fuel sources and 53 % (PM2.5) and 78 % (PM10–2.5) of OC to biogenic sources.
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