An ice-core, drilled on Lys Glacier (Italian Alps), was analysed to determine PCB concentration. Contamination was characterised by low chlorinated congeners (di-, tri- and sometimes tetra- chlorobiphenyls) for all the investigated periods. The historical trend indicates the maximum concentration occurring in the early 1980's. These results are highly correlated to PCB technical mixture burden and physical-chemical properties. The role of temperature on PCB environmental fate is highlighted. High mountains can be considered to be a cold condenser.
Villa, S., Maggi, V., Negrelli, C., Finizio, A., Bolzacchini, E., Vighi, M. (2001). Historical profile of polychlorinated biphenyls (PCBs) in an alpine glacier. FRESENIUS ENVIRONMENTAL BULLETIN, 10(9), 711-716.
Historical profile of polychlorinated biphenyls (PCBs) in an alpine glacier
VILLA, SARA;MAGGI, VALTER;FINIZIO, ANTONIO;BOLZACCHINI, EZIO;VIGHI, MARCO
2001
Abstract
An ice-core, drilled on Lys Glacier (Italian Alps), was analysed to determine PCB concentration. Contamination was characterised by low chlorinated congeners (di-, tri- and sometimes tetra- chlorobiphenyls) for all the investigated periods. The historical trend indicates the maximum concentration occurring in the early 1980's. These results are highly correlated to PCB technical mixture burden and physical-chemical properties. The role of temperature on PCB environmental fate is highlighted. High mountains can be considered to be a cold condenser.
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