Emission factors for open and domestic biomass burning for use in atmospheric models

Atmospheric chemistry and physics, Journal Year: 2011, Volume and Issue: 11(9), P. 4039 - 4072

Published: May 3, 2011

Abstract. Biomass burning (BB) is the second largest source of trace gases and primary fine carbonaceous particles in global troposphere. Many recent BB studies have provided new emission factor (EF) measurements. This especially true for non-methane organic compounds (NMOC), which influence secondary aerosol (SOA) ozone formation. New EF should improve regional to emissions estimates therefore, input atmospheric models. In this work we present an up-to-date, comprehensive tabulation known pyrogenic species based on measurements made smoke that has cooled ambient temperature, but not yet undergone significant photochemical processing. All EFs are converted one standard form (g compound emitted per kg dry biomass burned) using carbon mass balance method they categorized into 14 fuel or vegetation types. terminology defined promote consistency. We compile a large number consumption unit area important fire types summarize several by major burning. Post processes discussed provide context concept within overall chemistry also highlight potential rapid changes relative scale some models remote sensing products. Recent shows individual fires emit significantly more gas-phase NMOC than previously thought including additional can model performance. A detailed estimate suggests emits at least 400 Tg yr−1 NMOC, almost 3 times larger most previous estimates. Selected results (e.g. HONO tracers HCN CH3CN) highlighted key areas requiring future research briefly discussed.

Language: Английский

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Chemistry of Atmospheric Brown Carbon

Chemical Reviews, Journal Year: 2015, Volume and Issue: 115(10), P. 4335 - 4382

Published: Feb. 26, 2015

ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTChemistry of Atmospheric Brown CarbonAlexander Laskin*†, Julia Laskin*‡, and Sergey A. Nizkorodov*§View Author Information‡ †Environmental Molecular Sciences Laboratory ‡Physical Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States§ Department Chemistry, University California, Irvine, California 92697, States*A.L.: e-mail, [email protected]; phone, +1 509 376-6129; fax, 376-6139.*J.L.: 376-6136; 376-6139.*S.A.N.: 949 824-1262; 824-2420.Cite this: Chem. Rev. 2015, 115, 10, 4335–4382Publication Date (Web):February 26, 2015Publication History Received24 October 2014Published online26 February 2015Published inissue 27 May 2015https://doi.org/10.1021/cr5006167Copyright © 2015 American Chemical SocietyRIGHTS & PERMISSIONSACS AuthorChoiceArticle Views25896Altmetric-Citations902LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum full text article downloads since November 2008 (both PDF HTML) across all institutions individuals. These metrics regularly updated to reflect usage leading up last few days.Citations number other articles citing this article, calculated by Crossref daily. Find more information about citation counts.The Altmetric Attention Score is a quantitative measure attention that research has received online. Clicking on donut icon will load page at altmetric.com with additional details score social media presence for given article. how calculated. Share Add toView InAdd Full Text ReferenceAdd Description ExportRISCitationCitation abstractCitation referencesMore Options onFacebookTwitterWechatLinked InReddit (19 MB) Get e-AlertsSUBJECTS:Absorption,Aerosols,Light absorption,Optical properties,Quantum mechanics e-Alerts

Language: Английский

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A review of biomass burning: Emissions and impacts on air quality, health and climate in China

The Science of The Total Environment, Journal Year: 2016, Volume and Issue: 579, P. 1000 - 1034

Published: Nov. 29, 2016

Biomass burning (BB) is a significant air pollution source, with global, regional and local impacts on quality, public health climate. Worldwide an extensive range of studies has been conducted almost all the aspects BB, including its specific types, quantification emissions assessing various impacts. China one countries where significance BB recognized, lot research efforts devoted to investigate it, however, so far no systematic reviews were synthesize information which emerging. Therefore aim this work was comprehensively review most published topic in China, literature concerning field measurements, laboratory indoors outdoors China. In addition, provides insights into role wildfire anthropogenic quality globally. Further, we attempted provide basis for formulation policies regulations by policy makers

Language: Английский

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Effects of aging on organic aerosol from open biomass burning smoke in aircraft and laboratory studies

Atmospheric chemistry and physics, Journal Year: 2011, Volume and Issue: 11(23), P. 12049 - 12064

Published: Dec. 5, 2011

Abstract. Biomass burning (BB) is a large source of primary and secondary organic aerosols (POA SOA). This study addresses the physical chemical evolution BB aerosols. Firstly, lifetime POA SOA signatures observed with Aerodyne Aerosol Mass Spectrometer are investigated, focusing on measurements at high-latitudes acquired during 2008 NASA ARCTAS mission, in comparison to data from other field studies laboratory aging experiments. The parameter f60, ratio integrated signal m/z 60 total component mass spectrum, used as marker rate oxidation fate POA. A background level f60~0.3% ± 0.06% for SOA-dominated ambient OA shown be an appropriate this tracer. Using also f44 tracer aged surrogate O:C, novel graphical method presented characterise plumes. Similar trends decreasing f60 increasing most lab studies. At least some very plumes retain clear signature. statistically significant difference between highly-oxygenated non-BB origin using tracer, consistent substantial contribution BBOA springtime Arctic aerosol burden 2008. Secondly, summary results net enhancement plumes, which shows variability. estimates gain range ΔOA/ΔCO(mass) = −0.01 ~0.05, mean ΔOA/POA ~19%. With these ratios global inventories CO due ~8 7 Tg yr−1 estimated, order 5 % recent estimates. Further following plume advection should focus future research better constrain potentially important burden.

Language: Английский

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A two-dimensional volatility basis set – Part 2: Diagnostics of organic-aerosol evolution

Atmospheric chemistry and physics, Journal Year: 2012, Volume and Issue: 12(2), P. 615 - 634

Published: Jan. 16, 2012

Abstract. We discuss the use of a two-dimensional volatility-oxidation space (2-D-VBS) to describe organic-aerosol chemical evolution. The is built around two coordinates, volatility and degree oxidation, both which can be constrained observationally or specified for known molecules. Earlier work presented thermodynamics organics forming foundation this 2-D-VBS, allowing us define average composition (C, H, O) organics, including organic aerosol (OA) based on oxidation state. Here we how analyze experimental data, using 2-D-VBS gain fundamental insight into chemistry. first present well-understood "traditional" secondary (SOA) system – SOA from α-pinene + ozone, then turn examples "non-traditional" formation wood smoke dilute diesel-engine emissions. Finally, broader implications analysis.

Language: Английский

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Multiphase Chemistry at the Atmosphere–Biosphere Interface Influencing Climate and Public Health in the Anthropocene

Chemical Reviews, Journal Year: 2015, Volume and Issue: 115(10), P. 4440 - 4475

Published: April 9, 2015

ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTMultiphase Chemistry at the Atmosphere–Biosphere Interface Influencing Climate and Public Health in AnthropoceneUlrich Pöschl* Manabu Shiraiwa*View Author Information Multiphase Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany*E-mail: [email protected] (U.P.).*E-mail: (M.S.).Cite this: Chem. Rev. 2015, 115, 10, 4440–4475Publication Date (Web):April 9, 2015Publication History Received1 September 2014Published online9 April 2015Published inissue 27 May 2015https://doi.org/10.1021/cr500487sCopyright © 2015 American Chemical SocietyRIGHTS & PERMISSIONSACS AuthorChoicewith CC-BYlicenseArticle Views17935Altmetric-Citations359LEARN ABOUT THESE METRICSArticle Views are COUNTER-compliant sum of full text article downloads since November 2008 (both PDF HTML) across all institutions individuals. These metrics regularly updated to reflect usage leading up last few days.Citations number other articles citing this article, calculated by Crossref daily. Find more information about citation counts.The Altmetric Attention Score is a quantitative measure attention that research has received online. Clicking on donut icon will load page altmetric.com with additional details score social media presence given article. how calculated. Share Add toView InAdd Full Text ReferenceAdd Description ExportRISCitationCitation abstractCitation referencesMore Options onFacebookTwitterWechatLinked InReddit (7 MB) Get e-AlertsSUBJECTS:Aerosols,Atmospheric chemistry,Free radicals,Nanoparticles,Particulate matter e-Alerts

Language: Английский

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Brownness of organics in aerosols from biomass burning linked to their black carbon content

Nature Geoscience, Journal Year: 2014, Volume and Issue: 7(9), P. 647 - 650

Published: Aug. 3, 2014

Language: Английский

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Ozone production from wildfires: A critical review

Atmospheric Environment, Journal Year: 2011, Volume and Issue: 51, P. 1 - 10

Published: Dec. 21, 2011

Language: Английский

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Brown carbon in tar balls from smoldering biomass combustion

Atmospheric chemistry and physics, Journal Year: 2010, Volume and Issue: 10(13), P. 6363 - 6370

Published: July 13, 2010

Abstract. We report the direct observation of laboratory production spherical, carbonaceous particles – "tar balls" from smoldering combustion two commonly occurring dry mid-latitude fuels. Real-time measurements spectrally varying absorption Ångström coefficients (AAC) indicate that a class light absorbing organic carbon (OC) with wavelength dependent imaginary part its refractive index optically defined as "brown carbon" is an important component tar balls. The spectrum parts their complex indices can be described Lorentzian-like model effective resonance in ultraviolet (UV) spectral region. Sensitivity calculations for aerosols containing traditional OC (no at visible and UV wavelengths) brown suggest accounting near-UV by leads to increase aerosol radiative forcing efficiency increased absorption. Since account nearly three-fourths total mass emitted globally, inclusion optical properties balls into models has significance Earth's radiation budget, remote sensing, understanding anomalous troposphere.

Language: Английский

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Research on aerosol sources and chemical composition: Past, current and emerging issues

Atmospheric Research, Journal Year: 2012, Volume and Issue: 120-121, P. 1 - 28

Published: Oct. 5, 2012

Language: Английский

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