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
L. Tositti, E. Brattich, G. Cinelli (2013). Aerosol Characterization At The WMO-GAW Station of Mt. Cimone (2165 m a.s.l.) by 7Be, 210Pb and PM10. VIENNA : IAEA.
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 approachI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
