Istituto di scienze dell'atmosfera e del clima     
Belosi F., Contini D., Donateo A. Measurements of atmospheric aerosol in the Salentum Peninsula and its correlation with local meteorology. In: Nuovo Cimento Della Societa Italiana Di Fisica C-Geophysics and Space Physics, vol. 29 (4) pp. 473 - 486. Societą Italiana di Fisica, 2006.
In this paper the results of measurements of Total Suspended Particles (TSP) and PM10 are presented. The samplings were carried out with a mobile laboratory in five locations on the Salentum peninsula situated in the southeastern part of Italy in Puglia. Measurements were taken discontinuously during the period 2002­2004. Some results of PM2.5 measurements taken only in 2004 are also presented. Up to now no systematic analyses of aerosol concentration in the Salentum peninsula have been presented in the scientific literature. This study is therefore a useful basis for assessing the local situation and for planning future monitoring and investigations. Measurements were performed using a standard European PM10 inlet (CEN­EN12341, 1998) and successive gravimetric detection of aerosol deposited over 24 hours periods on filters. The measurement sites can be considered representative of urban background for all the cases investigated. Results show concentrations in good agreement with lognormal distributions, indicating that the PM10 fraction is about 69% of TSP and PM2.5 is about 81% of PM10, which allows us to evaluate that the fraction of PM2.5 is about 56% of TSP. Concentration levels were correlated with local meteorological parameters, such as wind velocity, wind direction and precipitations. Results indicate that there is, on average, a substantial decrease of concentration levels in high wind conditions and on rainy days. They also suggest the possibility of a significant contribution 1 of African Dust to PM10 and TSP, especially in the summer season, which could be responsible for some periods of concentrations above the threshold imposed by the European legislation on PM10.
DOI: 10.1393/ncc/i2006-10012-4
Subject PM2.5
Sahara dust
Aerosol concentration

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