Comprehensive natural radioactivity and pollution risk assessments of aquatic media and sediment in Lake Van (Türkiye).

This paper studies the radionuclide (Cs, Ra, Th, K) activity concentrations and gross radioactivities in waters and sediments of Lake Van, which is the third largest closed lake (with no natural or artificial outlet) within the Earth. The physico-chemical parameters were measured and evaluated in the lake waters. The mean gross α activities in surface, middle and bottom waters are 0.