Secondary organic aerosol formation in the atmosphere via heterogeneous reaction of gaseous isoprene on acidic particles

Details Secondary organic aerosol formation in the atmosphere via heterogeneous reaction of gaseous isoprene on acidic particles Secondary organic aerosol formation in the atmosphere via heterogeneous reaction of gaseous isoprene on acidic particles

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30sasc6l&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 19, pp. ASC 6-1, CiteID 1996, DOI 10.1029/2003GL017738

Other

65

Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801), Atmospheric Composition And Structure: Biosphere/Atmosphere Interactions, Atmospheric Composition And Structure: Constituent Sources And Sinks

Scientific paper

Water-soluble macromolecular substances with spectral properties of ``humic-like substances'' (HULIS) were recently found to form the major identified fraction of the organic aerosol at urban and rural sites in Europe. With primary sources identified so far (e.g., biomass combustion) it is not possible to explain the observed HULIS levels in Europe, therefore there is an ongoing search for other sources - which form HULIS in situ in the atmosphere. Here we show that secondary aerosol formation of atmospheric polymers occurs by heterogeneous reaction of isoprenoid or terpenoid emissions in the presence of a sulfuric acid aerosol catalyst. Competing oxidants such as ozone or the presence of humidity decreased the reaction yield, but the formation of humic-like substances was not disabled. Calculations indicate that the presented reaction pathway could be an additional source for HULIS in the continental aerosol.

Affiliated with

Also associated with

No associations

Rating

Secondary organic aerosol formation in the atmosphere via heterogeneous reaction of gaseous isoprene on acidic particles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Secondary organic aerosol formation in the atmosphere via heterogeneous reaction of gaseous isoprene on acidic particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secondary organic aerosol formation in the atmosphere via heterogeneous reaction of gaseous isoprene on acidic particles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-918422