ABSTRACT Large quantities of heavy metals come from anthropogenic sources, including coal combustion, furthermore, these heavy metals can cause oxidative stress in terrestrial animals, such as snails, which acquire these metals through food from storage plants in industrial and coal-burning-polluted areas. In this research project, we measured the impact and distribution of power plant TC Kosova A's activity on the concentrations of heavy metals (Pb, Zn, Ni) in the locality of Obiliq, as well as their effect on oxidative stress parameters such as carbonyl proteins, malondialdehyde (MDA), and total proteins in the hepatopancreas of the snail Helix pomatia L. We collected 120 soil samples and 12 snails from concentric circles around the pollution point at distances of 1 km, 2 km, and 5 km. Relevant methods were then applied, and the samples were measured using a spectrophotometer and flame absorber Analyticyena. Our results shown that the heavy metals Pb, Zn, and Ni bioaccumulated from snail shells (Helix pomatia L.), and concentrations of these metals influenced an increase in the levels of oxidative stress parameters, including protein carbonylation, malondialdehyde (MDA), and total proteins in the hepatopancreas.