An empirical method was applied to estimate the ²²²Rn fluxes distribution across the Campania region (Italy) by using both gamma-rays and U, Th, K concentrations in soils. As a first step, K, Th and U soil concentrations and ⁴ K, ²³⁸U and ²³²Th activity have been converted into their own specific activity to calculate the Terrestrial Gamma Dose Rate (TGDR). This latter has been then used to determine the ²²²Rn fluxes across the region. Regardless of the radiometric or geochemical origin, ²²²Rn fluxes reached, as expected, their maximum values in correspondence with the volcanic centres of Campania (Mt. Somma-Vesuvius, Phlegrean Fields, Mt. Roccamonfina). However, comparing the results obtained from the two different datasets, it was also possible to infer the existence of contributions to surficial ²²²Rn fluxes proceeding from both some underlying geological bodies and active seismogenic sources.

In line with some national regulations, the ²²²Rn flux esteemed from gamma radiations was also used to assess the possible regional distribution of risk deriving from the indoor environmental exposure to ²²²Rn; results were compared with standardized incidence rates (SIRs) of lung cancer for an area on the south-western sector of Mt. Somma-Vesuvius showing a potential spatial relationship among flux data and SIRs.

通过使用伽马射线和土壤中的 U、Th、K 浓度，应用经验方法来估计坎帕尼亚地区（意大利）的²²² Rn 通量分布。作为第一步，K、Th 和 U 土壤浓度以及⁴  K、²³⁸ U 和²³² Th 活性已转换为它们自己的比活性，以计算陆地伽马剂量率 (TGDR)。后者随后被用于确定该区域的²²² Rn 通量。无论辐射测量或地球化学起源，²²²正如预期的那样，Rn 通量达到了与坎帕尼亚火山中心（Mt. Somma-Vesuvius，Phlegrean Fields，Mt. Roccamonfina）相对应的最大值。然而，比较从两个不同数据集获得的结果，还可以推断出对来自一些下伏地质体和活动地震源的地表²²² Rn 通量的贡献的存在。

根据一些国家法规，来自伽马辐射的²²² Rn 通量也用于评估室内环境暴露于²²² Rn 所产生的风险的可能区域分布；结果与索马-维苏威火山西南部地区肺癌的标准化发病率 (SIR) 进行了比较，显示了通量数据和 SIR 之间的潜在空间关系。