Istituto di Chimica della Materia Condensata e di Tecnologie per l'Energia, Consiglio Nazionale delle Ricerche, C.so Stati Uniti 4, Padova, 35127, Italy.
Istituto di Chimica della Materia Condensata e di Tecnologie per l'Energia, Consiglio Nazionale delle Ricerche, C.so Stati Uniti 4, Padova, 35127, Italy; Geophysical Institute, University of Bergen, Bergen, Norway.
J Environ Radioact. 2021 Jun;232:106566. doi: 10.1016/j.jenvrad.2021.106566. Epub 2021 Mar 6.
In this study, three methods to measure activity concentrations of radionuclides through high resolution gamma spectrometry are developed, optimized, and tested on drinking water samples. Two pre-concentration methods (partial evaporation and ion-exchange resins) were optimized for accuracy, precision, detection limits, costs, preparation, and measurements times. A new sampling method for Rn was designed and optimized to directly sample water from the tap, reducing and minimizing losses of radon during the sampling. A total number of 85 water samples were collected between 2017 and 2019 in collaboration with two drinking water suppliers in a wide area (~2000 km) of the Veneto region, northeast Italy. These are the first results of radionuclides activity concentration in drinking water concerning a large extension in the foothill Veneto region. Finally, this study provides a first attempt of determining the spatial distribution and seasonal variations of radon activity concentration in drinking water in the study area.
本研究开发了三种通过高分辨率伽马谱法测量放射性核素活度浓度的方法，并在饮用水样品上进行了优化和测试。两种预浓缩方法（部分蒸发和离子交换树脂）经过优化，以提高准确性、精密度、检测限、成本、准备和测量时间。设计并优化了一种新的 Rn 采样方法，可直接从龙头采集水样，最大限度地减少采样过程中氡的损失。2017 年至 2019 年期间，与意大利东北部威尼托地区（约 2000 公里）的两家饮用水供应商合作，共采集了 85 个水样。这些是有关威尼托山前地区大范围饮用水中放射性核素活度浓度的首批研究结果。最后，本研究首次尝试确定研究区域饮用水中氡活度浓度的空间分布和季节性变化。
