Historical profile of polychlorinated biphenyls (PCBs) in an alpine glacier

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 oc...

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Bibliographic Details
Main Authors: VILLA, SARA, MAGGI, VALTER, Negrelli, C, FINIZIO, ANTONIO, BOLZACCHINI, EZIO, VIGHI, MARCO
Other Authors: Villa, S, Maggi, V, Finizio, A, Bolzacchini, E, Vighi, M
Format: Article in Journal/Newspaper
Language:English
Published: INST LEBENSMITTELTECHNOLOGIE ANALYTISCHE CHEMIE 2001
Subjects:
PCB
Log Koa
ice core
historical trend
high mountain
long range transport
Online Access:http://hdl.handle.net/10281/418
Description
Summary: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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