dc.identifier.citation | J. Boman, M. J. Gatari, S. Janhall, A. S. Shannigrahi, and A. Wagner (2009). Elemental content of PM2.5 aerosol particles collected in G¨oteborg during the G¨ote-2005 campaign in February 2005. Atmos. Chem. Phys., 9, 2597–2606, 2009 | en |
dc.description.abstract | The Gote–2005 measurement campaign aimed at
studying the influence of the winter thermal inversions on
urban air pollution. Elemental speciation of PM2.5 aerosol
particles, collected on Teflon filters at three urban sites and
one rural site in the Goteborg region, was a major part of
the study. Trace element analysis was done by Energy Dispersive
X-Ray Fluorescence (EDXRF) spectrometry and the
concentrations of S, Cl, K, Ca, Ti, V, Mn, Fe, Ni, Cu, Zn, Br
and Pb were determined. The elemental content of the particles,
local wind speed and direction, and backward trajectories
were used to investigate possible sources for the pollutants.
We concluded that S, V, Ni, Br, and Pb had their
main sources outside the central Goteborg area, since elevated
concentrations of these elements were not observed
during an inversion episode. Sea traffic and harbour activities
were identified, primarily by the S and V content of the
particles. This study showed that the elemental analysis by
EDXRF presents valuable information for tracing the origin
of air masses arriving at a measurement site. | en |