Annual dynamics of aerosol organic components in the free atmosphere over South-Western Siberia

We study the annual behavior of the concentration of organic components of the atmospheric aerosol, sampled onboard the Tu-134 Optik airborne laboratory in the atmospheric layer of 500–8500 m. The concentration of the organic component in aerosol composition is found to be maximal during spring and minimal during fall. Compounds ranging from C8H18 to C35H72 are detected in the composition of aerosol particles. The range of hydrocarbons is the widest during the winter period (C12H26–C35H72) and during spring (C8H18–C31H64), and it is markedly narrower during summer (C18H38–C33H68) and during fall (C16H34–C31H64). One mode (n-alkane C20H42) predominates in aerosol composition throughout the year. A secondary maximum, corresponding to n-alkane C29H60, appears during the summer period.

[1]  Stephen J. Fuller,et al.  Molecular composition of biogenic secondary organic aerosols using ultrahigh resolution mass spectrometry: comparing laboratory and field studies , 2013 .

[2]  P. Hobbs,et al.  Airborne measurements of carbonaceous aerosols on the East Coast of the United States , 1997 .

[3]  G. N. Tolmachev,et al.  Hydrocarbon composition of tropospheric aerosol in the south of Western Siberia , 2014 .

[4]  Hanna Vehkamäki,et al.  Formation and growth rates of ultrafine atmospheric particles: a review of observations , 2004 .

[5]  Seung Yong Lee,et al.  Seasonal characteristics of submicrometer organic aerosols in urban Gwangju, Korea using an aerosol mass spectrometer , 2013 .

[6]  T. Petäjä,et al.  Trends in atmospheric new-particle formation: 16 years of observations in a boreal-forest environment , 2014 .

[7]  V. Shevchenko,et al.  Elemental and organic carbon in atmospheric aerosols over the northwestern coast of Kandalaksha Bay of the White Sea , 2015, Doklady Earth Sciences.

[8]  T. Petäjä,et al.  Reactivity of stabilized Criegee intermediates (sCIs) from isoprene and monoterpene ozonolysis toward SO 2 and organic acids , 2014 .

[9]  J. Seinfeld,et al.  Molecular corridors and kinetic regimes in the multiphase chemical evolution of secondary organic aerosol , 2014 .

[10]  A. Wexler,et al.  Atmospheric amines - Part I. A review , 2011 .

[11]  G. J. Doyle.  Self‐Nucleation in the Sulfuric Acid‐Water System , 1961 .

[12]  J. Jimenez,et al.  Airborne cloud condensation nuclei measurements during the 2006 Texas Air Quality Study , 2011 .

[13]  Fang Liu,et al.  Infrared-driven unimolecular reaction of CH3CHOO Criegee intermediates to OH radical products , 2014, Science.

[14]  J. Chow,et al.  Organic aerosols in the southeastern United States: Speciated particulate carbon measurements from the SEARCH network, 2006–2010 , 2014 .

[15]  P. Fu,et al.  Molecular characterization of marine organic aerosols collected during a round‐the‐world cruise , 2011 .

[16]  A. M. Booth,et al.  Airborne measurements of HC(O)OH in the European Arctic: A winter – summer comparison , 2014 .

[17]  H. Hakola,et al.  Acidic reaction products of monoterpenes and sesquiterpenes in atmospheric fine particles in a boreal forest , 2014 .

[18]  H. Timonen,et al.  Sources of carbonaceous aerosol in the free troposphere , 2014 .

[19]  Ranjeet S. Sokhi,et al.  Atmospheric polycyclic aromatic hydrocarbons: Source attribution, emission factors and regulation , 2008 .

[20]  Junji Cao,et al.  Selected water-soluble organic compounds found in size-resolved aerosols collected from urban, mountain and marine atmospheres over East Asia , 2011 .

[21]  James D. Lee,et al.  Airborne observations of IEPOX-derived isoprene SOA in the Amazon during SAMBBA , 2014 .

[22]  C. O'Dowd,et al.  Organic aerosol components derived from 25 AMS data sets across Europe using a consistent ME-2 based source apportionment approach , 2014 .

[23]  C. Brenninkmeijer,et al.  The impact of the chemical production of methyl nitrate from the NO + CH 3 O 2 reaction on the global distributions of alkyl nitrates, nitrogen oxides and tropospheric ozone: a global modelling study , 2013 .

[24]  J. Neirynck,et al.  Atmospheric composition change: Ecosystems–Atmosphere interactions , 2009 .