To understand better the mechanisms ruling the fate of POPs (persistent organic pollutants) in cold environments, a field campaign sampling fresh-fallen snow and air on an Alpine glacier was carried out during Summer 2003. The concentrations of all analyzed chemicals in fresh-fallen snow show a sharp decrease over time, particularly for the more volatile POPs, confirming the rather limited literature evidence of a rapid decline of such substances from the snowpack and/or ice. Even if the results presented here are preliminary and should be confirmed by further studies, some evidence of the influence of a night/day cycle of temperature on POP deposition and revolatilization mechanisms has been highlighted. Finally, the role of cold condensation and long-range atmospheric transport in the contamination of higher altitudes in this Alpine system has been substantiated, particularly for OC pesticides

Finizio, A., Villa, S., Raffaele, F., Vighi, M. (2006). Variation of POP concentrations in fresh-fallen snow and air on an Alpine glacier (Monte Rosa). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 63(1), 25-32 [10.1016/j.ecoenv.2005.05.004].

Variation of POP concentrations in fresh-fallen snow and air on an Alpine glacier (Monte Rosa)

Finizio, A;Villa, S;RAFFAELE, FRANCESCA;Vighi, M
2006

Abstract

To understand better the mechanisms ruling the fate of POPs (persistent organic pollutants) in cold environments, a field campaign sampling fresh-fallen snow and air on an Alpine glacier was carried out during Summer 2003. The concentrations of all analyzed chemicals in fresh-fallen snow show a sharp decrease over time, particularly for the more volatile POPs, confirming the rather limited literature evidence of a rapid decline of such substances from the snowpack and/or ice. Even if the results presented here are preliminary and should be confirmed by further studies, some evidence of the influence of a night/day cycle of temperature on POP deposition and revolatilization mechanisms has been highlighted. Finally, the role of cold condensation and long-range atmospheric transport in the contamination of higher altitudes in this Alpine system has been substantiated, particularly for OC pesticides
Articolo in rivista - Articolo scientifico
POPs, Mountain environment, air, snow, long range transport
English
2006
63
1
25
32
none
Finizio, A., Villa, S., Raffaele, F., Vighi, M. (2006). Variation of POP concentrations in fresh-fallen snow and air on an Alpine glacier (Monte Rosa). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 63(1), 25-32 [10.1016/j.ecoenv.2005.05.004].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/884
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