Wintertime Air Quality in Lumbini, Nepal: Sources of Fine Particle Organic Carbon

Md. Robiul Islam (1) , Tianyi Li (2, 3, 4) , Khadak Mahata (5) , Nita Khanal (5) , Benjamin Werden (6) , Michael Giordano (7, 8) , Puppala Siva Praveen (9) , Narayan Babu Dhital (10) , Anobha Gurung (11) , Arnico K. Panday (12) , Indu Bikram Joshi , Shankar Prasad Poudel , Yanbo Wang (13) , Eri Saikawa (13) , Robert J. Yokelson (14) , Peter Decarlo (15) , Elizabeth A. Stone (1)

1 University of Iowa [Iowa City]
2 Airbus Operation S.A.S.
3 IRIT-SIG - Systèmes d’Informations Généralisées
4 UT2J - Université Toulouse - Jean Jaurès
5 Alpine Consultancy
6 Drexel University
7 LISA (UMR_7583) - Laboratoire Interuniversitaire des Systèmes Atmosphériques
8 ENPC - École des Ponts ParisTech
9 ICIMOD - International Centre for Integrated Mountain Development
10 Tribhuvan University
11 Clean Cooking Alliance
12 IIDS - Institute for Integrated Development Studies
13 Emory University [Atlanta, GA]
14 University of Montana
15 JHU - Johns Hopkins University

The Indo-Gangetic Plains (IGP) experience high levels of airborne particulate matter (PM), especially during the dry season. Contributing to PM are natural and anthropogenic emissions and the atmospheric transformation of gases to form particles. Regional smog events occur frequently during wintertime and provide an atmospheric medium for aerosol processing. Here, we investigate the chemical composition and sources of PM at a representative site in the northern IGP during the second Nepal Ambient Monitoring and Source Testing Experiment (NAMaSTE 2).

Mots clés: molecular markers; garbage burning; biomass burning; Indo-Gangetic plains; atmospheric aerosols; carbonaceous aerosol; source apportionment; chemical mass balance

Domaines: Sciences de l'environnement

Md. Robiul Islam, Tianyi Li, Khadak Mahata, Nita Khanal, Benjamin Werden, et al.. Wintertime Air Quality in Lumbini, Nepal: Sources of Fine Particle Organic Carbon. ACS Earth and Space Chemistry, 2021, 5 (2), pp.226-238. ⟨10.1021/acsearthspacechem.0c00269⟩. ⟨hal-04568669⟩