A study of spatial variability of PM10 elemental components was conducted in Terni city (Central Italy), situated in an intramountain depression characterized by the presence of several particulate matter emission sources. The meteorological conditions of Terni basin limit the dispersion and enhance the accumulation of the atmospheric pollutants. Thanks to the utilization of new samplers (Smart Sampler), used for the first time and working in parallel at 23 sampling sites, spatially resolved data were obtained. Localizations of the samplers were chosen in order to evaluate the impact of different local PM10 sources. Chemical composition of the samples was determined in combination with a chemical fractioning procedure, that allowed us to discriminate watersoluble and residual fractions of analyzed elements in which proved to be a valuable approach for increasing selectivity of elements as source tracers. Spatial variability of elements underlined the contribution of local emission sources and the different dispersion capacity of each element. Terni city resulted to be an ideal area to test and validate a new experimental method for the acquisition of spatially resolved data providing the possibility to properly evaluate the spatial variability of PM10 and its chemical components.

Monitoring and evaluation of Terni (Central Italy) air quality through spatially resolved analyses / Massimi, Lorenzo; Ristorini, Martina; Eusebio, Marta; Darla, Florendo; Adeola, Adeyemo; Brugnoli, Davide; Canepari, Silvia. - ELETTRONICO. - 2:(2017), pp. 1-14. ((Intervento presentato al convegno ECAS 2017 - The 2nd International Electronic Conference on Atmospheric Sciences tenutosi a Online.

Monitoring and evaluation of Terni (Central Italy) air quality through spatially resolved analyses

MASSIMI, LORENZO
Investigation
;
RISTORINI, MARTINA;EUSEBIO, MARTA;Davide Brugnoli;Silvia Canepari
2017

Abstract

A study of spatial variability of PM10 elemental components was conducted in Terni city (Central Italy), situated in an intramountain depression characterized by the presence of several particulate matter emission sources. The meteorological conditions of Terni basin limit the dispersion and enhance the accumulation of the atmospheric pollutants. Thanks to the utilization of new samplers (Smart Sampler), used for the first time and working in parallel at 23 sampling sites, spatially resolved data were obtained. Localizations of the samplers were chosen in order to evaluate the impact of different local PM10 sources. Chemical composition of the samples was determined in combination with a chemical fractioning procedure, that allowed us to discriminate watersoluble and residual fractions of analyzed elements in which proved to be a valuable approach for increasing selectivity of elements as source tracers. Spatial variability of elements underlined the contribution of local emission sources and the different dispersion capacity of each element. Terni city resulted to be an ideal area to test and validate a new experimental method for the acquisition of spatially resolved data providing the possibility to properly evaluate the spatial variability of PM10 and its chemical components.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/1023683
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