Research field: 1.Assessment of naturally occurring radioactive materials (NORM) and artificial especially alpha, beta, and gamma-spectrometric analyses. Environmental radioactivity measurements. Radiation hazard assessment. Radiochemical separation measurement of actinides, uranium, plutonium, thorium, lead isotopes. - In-situ gamma spectrometry. Radio-ecological studies. - Radon 2. Assessment of Heavy Metals in environmental ans studies of impact on environment and human body. 3. Application of clay minerals on water treatment processes.