For a better understanding of the previously observed increased natural radioactivity at the confluence of the Varzob and Sioma rivers. Central Tajikistan. the activity concentration of natural radioactive 40K. Th and U daughters as well as of the anthropogenic 137Cs were determined in nine locations covering the entire Sioma River. https://www.alarecre.com/NHL-Dallas-Stars-Black-Background-iPhone-13-Pro-Max-MagSafe-Case-p96318/