Measurements of airborne radionuclides 7Be ,210Pb and PM10 have been routinely carried out together with aerosol mass concentration at the WMO-GAW station of Mt. Cimone (Northern Apennines, Italy) with the aim to obtain basic information on aerosol behavior at this site. Several years of data (the experimental activity, started in January 1998) are presented and discussed in this paper. Aerosol collection is carried out by filtration with a high-volume PM10 sampler for 48 hours. Activities of 7Be and 210Pb were measured by non-destructive -ray spectrometry and aerosol mass concentration was determined gravimetrically. A distinct seasonal cycle is observed for 7Be, 210Pb and PM10, with maxima in the summer and minima in the winter. The opposite trend is observed for the activity ratio 7Be/210Pb, used as an indicator of vertical transport. Variability of the three parameters at this site is discussed by means of statistical tools such as t-test analysis classification as well as by back-trajectory approach

Aerosol Characterization At The WMO-GAW Station of Mt. Cimone (2165 m a.s.l.) by 7Be, 210Pb and PM10

TOSITTI, LAURA;BRATTICH, ERIKA;CINELLI, GIORGIA
2013

Abstract

Measurements of airborne radionuclides 7Be ,210Pb and PM10 have been routinely carried out together with aerosol mass concentration at the WMO-GAW station of Mt. Cimone (Northern Apennines, Italy) with the aim to obtain basic information on aerosol behavior at this site. Several years of data (the experimental activity, started in January 1998) are presented and discussed in this paper. Aerosol collection is carried out by filtration with a high-volume PM10 sampler for 48 hours. Activities of 7Be and 210Pb were measured by non-destructive -ray spectrometry and aerosol mass concentration was determined gravimetrically. A distinct seasonal cycle is observed for 7Be, 210Pb and PM10, with maxima in the summer and minima in the winter. The opposite trend is observed for the activity ratio 7Be/210Pb, used as an indicator of vertical transport. Variability of the three parameters at this site is discussed by means of statistical tools such as t-test analysis classification as well as by back-trajectory approach
Proceedings International Symposium on Isotope Hydrology, Marine Ecosystems and Climate Change Studies (IAEA)
387
393
L. Tositti; E. Brattich; G. Cinelli
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/109835
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