Volatility and mixing states of ultrafine particles from biomass burning.

Fine and ultrafine carbonaceous aerosols produced from burning biomasses hold enormous importance in terms of assessing radiation balance and public health hazards. As such, volatility and mixing states of size-selected ultrafine particles (UFP) emitted from rice straw, oak, and pine burning were investigated by using volatility tandem differential mobility analyzer (VTDMA) technique in this study. Rice straw combustion produced unimodal size distributions of emitted aerosols, while bimodal size distributions from combustions of oak (hardwood) and pine (softwood) were obtained. A nearness of flue gas temperatures and a lower CO ratio of flaming combustion (FC) to smoldering combustion (SC) were characteristic differences found between softwood and hardwood. SC emitted larger mode particles in higher numbers than smaller mode particles, while the converse was true for FC. Rice straw open burning UFPs exhibited a volatilization behavior similar to that between FC and SC. In addition, internal mixing states were observed for size-selected UFPs in all biomasses for all combustion conditions, while external mixing states were only observed for rice straw combustion. Results for FC and open burning suggested there was an internal mixing of volatile organic carbon (OC) and non-volatile core (e.g., black carbon (BC)), while the SC in rice straw produced UFPs devoid of non-volatile core. Also, it was found that volatility of constituting OC in FC and SC particles was different.

[1]  R. Betts,et al.  Changes in Atmospheric Constituents and in Radiative Forcing. Chapter 2 , 2007 .

[2]  M. Hannigan,et al.  Size distribution of trace organic species emitted from biomass combustion and meat charbroiling , 2008 .

[3]  Unto Tapper,et al.  Fine particle and gaseous emissions from normal and smouldering wood combustion in a conventional masonry heater , 2008 .

[4]  Ulrich Pöschl,et al.  Atmospheric aerosols: composition, transformation, climate and health effects. , 2005, Angewandte Chemie.

[5]  Hans Moosmüller,et al.  Emissions from laboratory combustion of wildland fuels: emission factors and source profiles. , 2007, Environmental science & technology.

[6]  Andre Nel,et al.  Health effects of air pollution. , 2004, The Journal of allergy and clinical immunology.

[7]  X. Querol,et al.  Summer 2009 wildfires in Portugal: Emission of trace gases and aerosol composition , 2011 .

[8]  L. Tarelho,et al.  Organic compounds in PM2.5 emitted from fireplace and woodstove combustion of typical Portuguese wood species , 2011 .

[9]  Takashi Korenaga,et al.  The influence of moisture content on polycyclic aromatic hydrocarbons emission during rice straw burning , 2001 .

[10]  S. Schneider,et al.  Climate Change 2007 Synthesis report , 2008 .

[11]  Thomas W. Kirchstetter,et al.  Emissions of trace gases and aerosols during the open combustion of biomass in the laboratory , 2009 .

[12]  M. Dubey,et al.  Brown carbon in tar balls from smoldering biomass combustion , 2010 .

[13]  Alexandre Caseiro,et al.  Chemical characterisation of fine particle emissions from wood stove combustion of common woods growing in mid-European Alpine regions , 2008 .

[14]  G. Oberdörster,et al.  Significance of particle parameters in the evaluation of exposure-dose-response relationships of inhaled particles , 1996 .

[15]  M. Shao,et al.  Source profiles of particulate organic matters emitted from cereal straw burnings. , 2007, Journal of environmental sciences.

[16]  M. Petters,et al.  Cloud condensation nucleation activity of biomass burning aerosol , 2009 .

[17]  G. Cass,et al.  Characteristics of atmospheric organic and elemental carbon particle concentrations in Los Angeles. , 1986, Environmental science & technology.

[18]  S. Menon,et al.  CURRENT UNCERTAINTIES IN ASSESSING AEROSOL EFFECTS ON CLIMATE , 2004 .

[19]  B. Gomišček,et al.  Case study analysis of PM burden at an urban and a rural site during the AUPHEP project , 2004 .

[20]  G. Cass,et al.  Chemical Characterization of Fine Particle Emissions from the Fireplace Combustion of Wood Types Grown in the Midwestern and Western United States , 2004 .

[21]  Z. Ning,et al.  Spatial and temporal variation of chemical composition and mass closure of ambient coarse particulate matter (PM10-2.5) in the Los Angeles area , 2011 .

[22]  Rajan K. Chakrabarty,et al.  Emissions from the laboratory combustion of wildland fuels: Particle morphology and size , 2006 .

[23]  R. Pachauri.  Climate change 2007. Synthesis report. Contribution of Working Groups I, II and III to the fourth assessment report , 2008 .

[24]  G R Cass,et al.  Chemical characterization of fine particle emissions from fireplace combustion of woods grown in the northeastern United States. , 2001, Environmental science & technology.

[25]  J. Jokiniemi,et al.  A novel field measurement method for determining fine particle and gas emissions from residential wood combustion , 2007 .

[26]  J. Rau,et al.  Composition and Size Distribution of Residential Wood Smoke Particles , 1989 .

[27]  Makiko Sato,et al.  Global atmospheric black carbon inferred from AERONET , 2003, Proceedings of the National Academy of Sciences of the United States of America.

[28]  Corinne Le Quéré,et al.  Climate Change 2013: The Physical Science Basis , 2013 .

[29]  Michael R. Olson,et al.  Spatial variability of carbonaceous aerosols and associated source tracers in two cites in the Midwestern United States , 2010 .

[30]  Allen L Robinson,et al.  Effects of dilution on fine particle mass and partitioning of semivolatile organics in diesel exhaust and wood smoke. , 2006, Environmental science & technology.

[31]  Guo-Ping Chang-Chien,et al.  Characterization and inventory of PCDD/F emissions from coal-fired power plants and other sources in Taiwan. , 2007, Chemosphere.

[32]  V. Ramanathan,et al.  Aerosols, Climate, and the Hydrological Cycle , 2001, Science.

[33]  Glen R. Cass,et al.  A Dilution Stack Sampler for Collection of Organic Aerosol Emissions: Design, Characterization and Field Tests , 1989 .

[34]  B. Gullett,et al.  PCDD/F emissions from burning wheat and rice field residue , 2003 .

[35]  J. Hansen,et al.  Large historical changes of fossil‐fuel black carbon aerosols , 2003 .

[36]  Glen R. Cass,et al.  Chemical Characterization of Fine Particle Emissions from Fireplace Combustion of Woods Grown in the Northeastern United States , 2001 .

[37]  M. Kleeman,et al.  Open burning of agricultural biomass: Physical and chemical properties of particle-phase emissions , 2005 .

[38]  Robert Gelein,et al.  Increased pulmonary toxicity of ultrafine particles? I. Particle clearance, translocation, morphology , 1990 .

[39]  L. Morawska,et al.  Quantification of particle number and mass emission factors from combustion of Queensland trees. , 2006, Environmental science & technology.

[40]  A. Shihadeh,et al.  On transport phenomena and equilibration time scales in thermodenuders , 2010 .

[41]  Michael J. Kleeman,et al.  Size and Composition Distribution of Fine Particulate Matter Emitted from Wood Burning, Meat Charbroiling, and Cigarettes , 1999 .

[42]  Allen L Robinson,et al.  Rethinking Organic Aerosols: Semivolatile Emissions and Photochemical Aging , 2007, Science.

[43]  Kihong Park,et al.  Measurements of hygroscopicity and volatility of atmospheric ultrafine particles during ultrafine particle formation events at urban, industrial, and coastal sites. , 2009, Environmental science & technology.

[44]  G. N. Richards,et al.  Measurement and modeling of air toxins from smoldering combustion of biomass. , 1995, Environmental science & technology.

[45]  M. Petters,et al.  Water uptake and chemical composition of fresh aerosols generated in open burning of biomass , 2010 .