investigated natural radioactivity concentrations in bottom ash in Romanian coal-fired power plants and reported a range of 15–159 Bq/kg activity for the 226 Ra radionuclide. In Yugoslavia
investigated natural radioactivity concentrations in bottom ash inRomanian coal-fired power plants and reported a range of15–159 Bq/kg activity for the226Ra radionuclide. In Yugoslavia
investigated concentrations radioactivity natural แรง ash in romanian coal-fired ทัวร์ plants ( reported a ระบบ 15 ชอค– 159 bq / kg activity for the เดือด ra radionuclide . ในยูโกสลาเวีย