DBPapers

SEM-EDX IDENTIFICATION OF PARTICLES FROM FOG IN AN INDUSTRIALLY POLLUTED REGION OF CZECH REPUBLIC

AUTHOR/S: V. STOYANOVA, A. SHOUMKOVA, J. FISAK, TS. TSACHEVA
Sunday 1 August 2010 by Libadmin2010

10th International Multidisciplinary Scientific GeoConference - SGEM2010, www.sgem.org, SGEM2010 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 20-26, 2010, Vol. 2, 269-276 pp

ABSTRACT

The properties of individual particles, rather than bulk aerosol characteristics, determine
the environmental and health impact of the atmospheric pollutants. Single particles have
been sampled during 30 fog episodes at the mount Milesovka (837 m a.s.l.) located in
the industrially polluted area of north Bohemian brown coalfield. More than 2000 of
these solid, water insoluble particles, collected from May 2006 till July 2007, have been
analyzed by SEM-EDX and classified according to their shape, size and elemental
composition. Here we summarize results related to the presence of some heavy metals
and other trace elements and their correlation to wind speed and direction, аt given
meteorological conditions. Particles, rich of Cu, Zn, Ba, Pb, Co, Ni, Fe, Ag, Au, Ce, Gd,
etc., have been detected. Most of the identified heavy metals present in particles smaller
than 5 μm. It has been established that some elements exist separately or in specific
combinations that, along with the information for particle’s backward trajectory, could
be used for recognition of the atmospheric pollution sources.

Keywords: SEM-EDX, solid atmospheric pollutants, trace elements, heavy metals, Czech Republic