Annual average and seasonal variations of residential radon concentration for all the Italian Regions

Radon exhalation and its dependence on moisture content from samples of soil and building materials

Seasonal indoor radon concentration in FYR of Macedonia

https://cyberleninka.org/article/n/150640.pdf

Gamma-spectrometric measurement of radioactivity in agricultural soils of the Lombardia region, northern Italy.

Hierarchical modeling of indoor radon concentration: how much do geology and building factors matter?

A first review of the numerous data on the areas in Italy where high radon concentration in dwellings have been found is presented here. The data were obtained from the national survey and from several local surveys carried out in areas where high radon concentration values were expected, on the basis of the national survey results or of geological considerations. The analysis is restricted to data obtained with long-term measurements. In the national survey – which was carried out in a representative sample of 5361 dwellings from 232 towns – 214 dwellings with annual radon concentration over 200 Bq/m 3 were found in 72 towns, distributed in 17 out of the 21 Italian Regions. The corresponding figures for 400 Bq/m 3 are: 46 dwellings, 25 towns, 6 Regions. Other local surveys were carried out 9 Regions, involving almost 3000 dwellings distributed in about 100 towns; the percentage of dwellings with radon concentration over 400 Bq/m 3 ranges from a few percent to about 40% in limited areas. These surveys differ for sampling strategy and detector exposure period, and therefore the results cannot be easily compared; anyway, only long term measurements have been considered here. In spite of this limitation, it can be assessed that many areas with high radon concentration have already been identified in Italy, also in Regions where the average radon concentration is lower than the national average. These areas are generally coinciding with those resulted from the survey in schools carried out in six regions. The data on dwellings collected here and those on schools will be utilized for defining radon-prone areas in the Italian territory.

Mauro Bonomi

Papers

Annual average and seasonal variations of residential radon concentration for all the Italian Regions

Areas with high radon levels in Italy

Natural radioactivity in Italian drinking and mineral waters: experimental data, and dose assessment