Major influence of secondary organic aerosols on black carbon absorption enhancement in the region of Paris, France

Yunjiang Zhang (1, 2) , Olivier Favez (1) , Francesco Canonaco , Grisa Mocnik , Dantong Liu , Tanguy Amodeo (1) , François Truong , André S.H. Prevot , Jean Sciare , Valérie Gros , Alexandre Albinet (1)

1 INERIS - Institut National de l'Environnement Industriel et des Risques
2 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]

Atmospheric black carbon (BC) and lightabsorbing organic aerosol (also referred as brown carbon, BrC) have strong effects on the Earth’s climate by absorbing direct solar radiation. To better characterize and quantify these effects, it is still needed to improve the understanding of specific underlying mechanisms such as the influence of primary emissions and secondary processes on absorption properties over long-term periods. We report here results of a three-year continuous field observations of both optical and chemical aerosol properties from March 2014 to March 2017 at a suburban background station (SIRTA) in the Paris region (France)...

Mots clés: SUBMICRON AEROSOLS; OPTICAL PROPERTIES; BLACK CARBON; SECONDARY ORGANIC AEROSOL; LENSING EFFECT

Domaines: Sciences de l'environnement

Yunjiang Zhang, Olivier Favez, Francesco Canonaco, Grisa Mocnik, Dantong Liu, et al.. Major influence of secondary organic aerosols on black carbon absorption enhancement in the region of Paris, France. European Aerosol Conference (EAC 2019), Aug 2019, Gothenburg, Sweden. ⟨ineris-03237741⟩