Analytical methods for the determination of 137Cs and 90Sr in ash of fuel pellets used in Italy

► Ashes of 22 different brands of wood pellets coming from different countries and used in the regions of Central Italy. ► Determination of the concentration of 137Cs and that of 90Sr, an other antropogenic radionuclide. ► The study the transfer of these two radionuclides from wood pellet to ashes. ► Data set to assess the dosimetric impact due to use of wood fuel pellets in domestic stoves and of ashes as fertilizers.