Levoglucosan stability in biomass burning particles exposed to hydroxyl radicals
نویسندگان
چکیده
منابع مشابه
Levoglucosan indicates high levels of biomass burning aerosols over oceans from the Arctic to Antarctic
Biomass burning is known to affect air quality, global carbon cycle, and climate. However, the extent to which biomass burning gases/aerosols are present on a global scale, especially in the marine atmosphere, is poorly understood. Here we report the molecular tracer levoglucosan concentrations in marine air from the Arctic Ocean through the North and South Pacific Ocean to Antarctica during bu...
متن کاملA review of biomass burning emissions, part II: Intensive physical properties of biomass burning particles
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متن کاملA Review of Biomass Burning Emissions Part III: Intensive Optical Properties of Biomass Burning Particles
Because of its wide coverage over much of the globe, biomass burning has been widely studied in the context of direct radiative forcing. Such study is warranted as smoke particles scatter and at times absorb solar radiation efficiently. Further, as much of what is known about smoke transport and impacts is based on remote sensing measurements, the optical properties of smoke particles have far ...
متن کاملMolecular Characterization of Brown Carbon in Biomass Burning Aerosol Particles.
Emissions from biomass burning are a significant source of brown carbon (BrC) in the atmosphere. In this study, we investigate the molecular composition of freshly emitted biomass burning organic aerosol (BBOA) samples collected during test burns of sawgrass, peat, ponderosa pine, and black spruce. We demonstrate that both the BrC absorption and the chemical composition of light-absorbing compo...
متن کاملBrown carbon and internal mixing in biomass burning particles.
Biomass burning (BB) contributes large amounts of black carbon (BC) and particulate organic matter (POM) to the atmosphere and contributes significantly to the earth's radiation balance. BB particles can be a complicated optical system, with scattering and absorption contributions from BC, internal mixtures of BC and POM, and wavelength-dependent absorption of POM. Large amounts of POM can also...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2010
ISSN: 0094-8276
DOI: 10.1029/2010gl043088