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A European aerosol phenomenology - 9: Light absorption properties of carbonaceous aerosol particles across surface Europe
J. Rovira, M. Savadkoohi, GI. Chen, G. Močnik, W. Aas, L. Alados-Arboledas, B. Artiñano, M. Aurela, J. Backman, S. Banerji, D. Beddows, B. Brem, B. Chazeau, MC. Coen, C. Colombi, S. Conil, F. Costabile, E. Coz, JF. de Brito, K. Eleftheriadis, O....
Language English Country Netherlands
Document type Journal Article
- MeSH
- Aerosols * analysis MeSH
- Air Pollutants analysis MeSH
- Environmental Monitoring MeSH
- Particulate Matter analysis MeSH
- Light MeSH
- Carbon * analysis MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- Europe MeSH
Carbonaceous aerosols (CA), composed of black carbon (BC) and organic matter (OM), significantly impact the climate. Light absorption properties of CA, particularly of BC and brown carbon (BrC), are crucial due to their contribution to global and regional warming. We present the absorption properties of BC (bAbs,BC) and BrC (bAbs,BrC) inferred using Aethalometer data from 44 European sites covering different environments (traffic (TR), urban (UB), suburban (SUB), regional background (RB) and mountain (M)). Absorption coefficients showed a clear relationship with station setting decreasing as follows: TR > UB > SUB > RB > M, with exceptions. The contribution of bAbs,BrC to total absorption (bAbs), i.e. %AbsBrC, was lower at traffic sites (11-20 %), exceeding 30 % at some SUB and RB sites. Low AAE values were observed at TR sites, due to the dominance of internal combustion emissions, and at some remote RB/M sites, likely due to the lack of proximity to BrC sources, insufficient secondary processes generating BrC or the effect of photobleaching during transport. Higher bAbs and AAE were observed in Central/Eastern Europe compared to Western/Northern Europe, due to higher coal and biomass burning emissions in the east. Seasonal analysis showed increased bAbs, bAbs,BC, bAbs,BrC in winter, with stronger %AbsBrC, leading to higher AAE. Diel cycles of bAbs,BC peaked during morning and evening rush hours, whereas bAbs,BrC, %AbsBrC, AAE, and AAEBrC peaked at night when emissions from household activities accumulated. Decade-long trends analyses demonstrated a decrease in bAbs, due to reduction of BC emissions, while bAbs,BrC and AAE increased, suggesting a shift in CA composition, with a relative increase in BrC over BC. This study provides a unique dataset to assess the BrC effects on climate and confirms that BrC can contribute significantly to UV-VIS radiation presenting highly variable absorption properties in Europe.
Aerosol d o o Kamniška 39A 1000 Ljubljana Slovenia
Aix Marseille Univ CNRS LCE Marseille France
Andalusian Institute for Earth System Research University of Granada Granada Spain
ANDRA DRD GES Observatoire Pérenne de l'Environnement 55290 Bure France
ARPA Lazio Regional Environmental Protection Agency Rome Italy
Arpa Lombardia Settore Monitoraggi Ambientali Unità Operativa Qualità dell'Aria Milano Italy
Atmospheric Composition Research Finnish Meteorological Institute 00560 Helsinki Finland
Center for Atmospheric Research University of Nova Gorica Ajdovščina 5270 Slovenia
Datalystica Ltd Parkstrasse 1 5234 Villigen Switzerland
Department of Applied Physics Meteorology Universitat de Barcelona Barcelona 08028 Spain
Department of Condensed Matter Physics Jozef Stefan Institute Ljubljana 1000 Slovenia
Department of Mining Industrial and ICT Engineering Manresa 08242 Spain
Environment and Health Administration SLB analysis Stockholm Sweden
Environment Department CIEMAT Madrid Spain
Estonian Environmental Research Centre Air Quality Management Department Tallinn Estonia
European Commission Joint Research Centre Ispra Italy
Federal Office of Meteorology and Climatology MeteoSwiss Payerne Switzerland
German Meteorological Service Observatory Hohenpeissenberg Germany
Global Change Research Institute Czech Academy of Sciences 603 00 Brno Czech Republic
Haze Instruments d o o Ljubljana 1000 Slovenia
Helsinki Region Environmental Services Authority Helsinki Finland
IMT Nord Europe Institut Mines Télécom Univ Lille Centre for Energy and Environment Lille France
Institut National de l'Environnement Industriel et des Risques Verneuil en Halatte France
Institute of Atmospheric Sciences and Climate 00133 Rome Italy
Institute of Atmospheric Sciences and Climate 40129 Bologna Italy
Institute of Chemical Process Fundamentals of the CAS Rozvojová 135 1 16502 Prague Czech Republic
Institute of Environmental Assessment and Water Research 08034 Barcelona Spain
Laboratoire de Météorologie Physique UMR6016 Université Clermont Auvergne CNRS Aubière France
National Institute of Research and Development for Optoelectronics INOE 2000 Magurele Romania
References provided by Crossref.org
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- $a Rovira, Jordi $u Institute of Environmental Assessment and Water Research (IDAEA-CSIC), 08034 Barcelona, Spain; Department of Applied Physics-Meteorology, Universitat de Barcelona, Barcelona, 08028, Spain. Electronic address: jordi.rovira@idaea.csic.es
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- $a A European aerosol phenomenology - 9: Light absorption properties of carbonaceous aerosol particles across surface Europe / $c J. Rovira, M. Savadkoohi, GI. Chen, G. Močnik, W. Aas, L. Alados-Arboledas, B. Artiñano, M. Aurela, J. Backman, S. Banerji, D. Beddows, B. Brem, B. Chazeau, MC. Coen, C. Colombi, S. Conil, F. Costabile, E. Coz, JF. de Brito, K. Eleftheriadis, O. Favez, H. Flentje, E. Freney, A. Gregorič, M. Gysel-Beer, R. Harrison, C. Hueglin, A. Hyvärinen, M. Ivančič, AC. Kalogridis, H. Keernik, G. Konstantinos, P. Laj, E. Liakakou, C. Lin, S. Listrani, K. Luoma, M. Maasikmets, HE. Manninen, N. Marchand, SM. Dos Santos, S. Mbengue, N. Mihalopoulos, D. Nicolae, JV. Niemi, M. Norman, J. Ovadnevaite, JE. Petit, S. Platt, ASH. Prévôt, M. Pujadas, JP. Putaud, V. Riffault, M. Rigler, M. Rinaldi, J. Schwarz, S. Silvergren, E. Teinemaa, K. Teinilä, H. Timonen, G. Titos, A. Tobler, J. Vasilescu, S. Vratolis, KE. Yttri, E. Yubero, N. Zíková, A. Alastuey, T. Petäjä, X. Querol, J. Yus-Díez, M. Pandolfi
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- $a Carbonaceous aerosols (CA), composed of black carbon (BC) and organic matter (OM), significantly impact the climate. Light absorption properties of CA, particularly of BC and brown carbon (BrC), are crucial due to their contribution to global and regional warming. We present the absorption properties of BC (bAbs,BC) and BrC (bAbs,BrC) inferred using Aethalometer data from 44 European sites covering different environments (traffic (TR), urban (UB), suburban (SUB), regional background (RB) and mountain (M)). Absorption coefficients showed a clear relationship with station setting decreasing as follows: TR > UB > SUB > RB > M, with exceptions. The contribution of bAbs,BrC to total absorption (bAbs), i.e. %AbsBrC, was lower at traffic sites (11-20 %), exceeding 30 % at some SUB and RB sites. Low AAE values were observed at TR sites, due to the dominance of internal combustion emissions, and at some remote RB/M sites, likely due to the lack of proximity to BrC sources, insufficient secondary processes generating BrC or the effect of photobleaching during transport. Higher bAbs and AAE were observed in Central/Eastern Europe compared to Western/Northern Europe, due to higher coal and biomass burning emissions in the east. Seasonal analysis showed increased bAbs, bAbs,BC, bAbs,BrC in winter, with stronger %AbsBrC, leading to higher AAE. Diel cycles of bAbs,BC peaked during morning and evening rush hours, whereas bAbs,BrC, %AbsBrC, AAE, and AAEBrC peaked at night when emissions from household activities accumulated. Decade-long trends analyses demonstrated a decrease in bAbs, due to reduction of BC emissions, while bAbs,BrC and AAE increased, suggesting a shift in CA composition, with a relative increase in BrC over BC. This study provides a unique dataset to assess the BrC effects on climate and confirms that BrC can contribute significantly to UV-VIS radiation presenting highly variable absorption properties in Europe.
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