Chemical fingerprinting of biomass burning organic aerosols from sugar cane combustion : complementary findings from field and laboratory studies
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Date
Authors
Hartner, Elena
Gawlitta, Nadine
Groeger, Thomas
Orasche, Juergen
Czech, Hendryk
Geldenhuys, Genna-Leigh
Jakobi, Gert
Tiitta, Petri
Yli-Pirila, Pasi
Kortelainen, Miika
Journal Title
Journal ISSN
Volume Title
Publisher
American Chemical Society
Abstract
Agricultural fires are a major source of biomass-burning organic aerosols (BBOAs) with impacts on health, the environment, and climate. In this study, globally relevant BBOA emissions from the combustion of sugar cane in both field and laboratory experiments were analyzed using comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry. The derived chemical fingerprints of fresh emissions were evaluated using targeted and nontargeted evaluation approaches. The open-field sugar cane burning experiments revealed the high chemical complexity of combustion emissions, including compounds derived from the pyrolysis of (hemi)cellulose, lignin, and further biomass, such as pyridine and oxime derivatives, methoxyphenols, and methoxybenzenes, as well as triterpenoids. In comparison, laboratory experiments could only partially model the complexity of real combustion events. Our results showed high variability between the conducted field and laboratory experiments, which we, among others, discuss in terms of differences in combustion conditions, fuel composition, and atmospheric processing. We conclude that both field and laboratory studies have their merits and should be applied complementarily. While field studies under real-world conditions are essential to assess the general impact on air quality, climate, and environment, laboratory studies are better suited to investigate specific emissions of different biomass types under controlled conditions.
Description
Keywords
Biomass-burning organic aerosol (BBOA), Combustion products, Nontargeted analysis, GC × GC-TOFMS, Biomass burning, Open-field burning, Sugar cane, Atmospheric aerosol, SDG-11: Sustainable cities and communities, SDG-13: Climate action, SDG-02: Zero hunger
Sustainable Development Goals
SDG-02:Zero Hunger
SDG-11:Sustainable cities and communities
SDG-13:Climate action
SDG-11:Sustainable cities and communities
SDG-13:Climate action
Citation
Hartner, E., Gawlitta, N., Gröger, T. et al. 2024, 'Chemical fingerprinting of biomass burning organic aerosols from sugar cane combustion : complementary findings from field and laboratory studies', ACS Earth Space Chemistry, vol. 8, no. 3, pp. 533-546, doi : 10.1021/acsearthspacechem.3c00301.