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  • Title: PCDD/Fs and PCBs in ambient air in a highly industrialized city in northern Italy.
    Author: Colombo A, Benfenati E, Bugatti SG, Lodi M, Mariani A, Musmeci L, Rotella G, Senese V, Ziemacki G, Fanelli R.
    Journal: Chemosphere; 2013 Mar; 90(9):2352-7. PubMed ID: 23141844.
    Abstract:
    Ambient air samples were collected in five locations around a polychlorobiphenyl (PCB) production plant in a highly industrialized city in the north of Italy, for the analysis of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) and PCBs. PCDD/F atmospheric concentrations were lower than those generally detected in urban areas, while PCB concentrations were higher than in urban and industrialized areas in other countries, especially in the locations closest to the plant. To identify source emissions responsible for air pollution we used principal component analysis (PCA) to compare the "fingerprint" of the air in Brescia with some source-related experimental and published data. This analysis showed that the PCDD/F fingerprints were more similar to steel plant emission data, while none of the PCB air patterns were comparable to emission profiles, indicating that different sources are responsible for the concentration of these two pollutants. The highest PCB concentrations detected in the areas closest to the chemical plant are indicative of its impact on the surrounding environment.
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