@article{fdi:010081601,
  title = {{O}rganic molecular composition of marine aerosols over the {A}rctic {O}cean in summer : contributions of primary emission and secondary aerosol formation},
  author = {{F}u, {P}. {Q}. and {K}awamura, {K}. and {C}hen, {J}. and {C}harriere, {B}. and {S}emp{\'e}r{\'e}, {R}ichard},
  editor = {},
  language = {{ENG}},
  abstract = {{O}rganic molecular composition of marine aerosol samples collected during the {MALINA} cruise in the {A}rctic {O}cean was investigated by gas chromatography/mass spectrometry. {M}ore than 110 individual organic compounds were determined in the samples and were grouped into different compound classes based on the functionality and sources. {T}he concentrations of total quantified organics ranged from 7.3 to 185 ng m(-3) (mean 47.6 ng m(-3)), accounting for 1.8-11.0 % (4.8 %) of organic carbon in the marine aerosols. {P}rimary saccharides were found to be dominant organic compound class, followed by secondary organic aerosol ({SOA}) tracers formed from the oxidation of biogenic volatile organic compounds ({VOC}s) such as isoprene, alpha-pinene and beta-caryophyllene. {M}annitol, the specific tracer for airborne fungal spores, was detected as the most abundant organic species in the samples with a concentration range of 0.052-53.3 ng m(-3) (9.2 ng m(-3)), followed by glucose, arabitol, and the isoprene oxidation products of 2-methyltetrols. {B}iomass burning tracers such as levoglucosan are evident in all samples with trace levels. {O}n the basis of the tracer-based method for the estimation of fungal-spore {OC} and biogenic secondary organic carbon ({SOC}), we estimate that an average of 10.7 % (up to 26.2 %) of the {OC} in the marine aerosols was due to the contribution of fungal spores, followed by the contribution of isoprene {SOC} (mean 3.8 %) and alpha-pinene {SOC} (2.9 %). {I}n contrast, only 0.19 % of the {OC} was due to the photooxidation of beta-caryophyllene. {T}his study indicates that primary organic aerosols from biogenic emissions, both from long-range transport of mid-latitude aerosols and from sea-to-air emission of marine organics, as well as secondary organic aerosols formed from the photooxidation of biogenic {VOC}s are important factors controlling the organic chemical composition of marine aerosols in the {A}rctic {O}cean.},
  keywords = {{ARCTIQUE}},
  booktitle = {},
  journal = {{B}iogeosciences},
  volume = {10},
  numero = {2},
  pages = {653--667},
  ISSN = {1726-4170},
  year = {2013},
  DOI = {10.5194/bg-10-653-2013},
  URL = {https://www.documentation.ird.fr/hor/fdi:010081601},
}