T. G. Leontieva
The Join Institute for Power and Nuclear Research – Sosny National of the Academy of Sciences of Belarus
Belarus

Tatiana G. Leontieva – Senior Researcher, Laboratory for Radiochemical Research of Natural Environments and Examination of Radioactive Materials 

PO box 119, 220109, Minsk

L. N. Maskalchuk
The Join Institute for Power and Nuclear Research – Sosny National of the Academy of Sciences of Belarus; 2Belarusian State Technological University
Belarus

Leonid N. Maskalchuk – Dr. Sci. (Engineering), Associate Professor, Leading Researcher of the Laboratory of Radiochemical Research of Natural Environments and Expertise of Radioactive Materials at The Join Institute for Power and Nuclear Research – Sosny of the National Academy of Sciences of Belarus; Professor of the Department of Life Safety, Faculty of Technology of Organic Substances at Belarusian State Technological University

PO box 119, 220109, Minsk; 
13а, Sverdlov Str., 220006, Minsk

A. A. Baklay
The Join Institute for Power and Nuclear Research – Sosny National of the Academy of Sciences of Belarus
Belarus

Anatoly A. Baklay – Senior Researcher, Laboratory for Radiochemical Research of Natural Environments and Examination of Radioactive Materials 

PO box 119, 220109, Minsk

N. A. Makovskaya
The Join Institute for Power and Nuclear Research – Sosny National of the Academy of Sciences of Belarus
Belarus

Natalia A. Makovskaya – Cand. Sci (Biology), Associate Professor, Head of the Laboratory for Radiochemical Research of Natural Environments and Examination of Radioactive Materials 

PO box 119, 220109, Minsk