6533b870fe1ef96bd12cfaf8
RESEARCH PRODUCT
Analysis of 7Be and 210Pb concentration and 7Be/210Pb activity ratio in ground level air in Palermo (Italy)
Elio Angelo TomarchioRiccardo BurlonS. Basilesubject
010302 applied physicsNuclear and High Energy PhysicsRadiationSettore ING-IND/20 - Misure E Strumentazione Nucleari02 engineering and technologyParticulates021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesPalermoSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)Settore FIS/03 - Fisica Della MateriaGround levelair particulateEnvironmental chemistry7Be0103 physical sciencesActivity concentrationEnvironmental scienceGeneral Materials Science0210 nano-technologyactivity concentration210Pbdescription
A series of measurements of particulate samples collected on paper filters in Palermo (Italy) during 1995–2005 has been performed to detect 210Pb air activity concentration and, along with previous similar data on 7Be, to evaluate their activity ratio. Average values for the daily activity concentrations of 7Be and 210Pb are found to be 4.7 and 0.6 mBq/m3 , respectively, 9.8 being the average activity ratio. Data confirm a seasonal behavior for both radionuclides. A correlation between 7Be and 210Pb air activity concentrations seems to exist, despite their different origins. The time behaviors of both 7Be and 210Pb air concentrations and 7Be/ 210Pb activity ratio have been compared with some meteorological parameter time series. The analysis of the data shows a weak correlation with rainfall, while no correlation can be established with other parameters. Monthly and weekly average values have been reconstructed taking into account missing data, in order to carry out homogeneous comparisons with available data from other geographical areas. Data series correlations and the frequency analysis show the importance of atmospheric transport processes and the influence of meteorological and climatic parameters (in particular rainfall) in determining the concentrations in air of both radionuclides.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-12-02 |