Thermoluminescence dosimetry has been used to measure air kerma in 29 sites in Sicily. Four three month measurement campaigns havebeen carried out in order to assess seasonal variations. Average annual values between 20 and 90 nGy h 1, after cosmic background subtraction,are reported. Average annual values are strongly dependent on site lithology, and we find that winter data are generally the highest, while springand autumn rates are generally the lowest with very similar trends in any site. Summer values generally lay in between. Largest seasonalvariations are found in sites along the southern coast of the island, probably because of stronger action of winds affecting radon, along withits progeny, concentrations at ground level.
|Rivista||Journal of Environmental Radioactivity|
|Stato di pubblicazione||Published - 2008|
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