Determination of PCB concentration in soil

The environment remains exposed to various pollutants that persist due to their decades-long accumulation. One such substance, no longer produced or legally used, yet still negatively impacting the environment due to past excessive use and accumulation, is polychlorinated biphenyls (PCBs). Their persistence in the environment makes them a significant concern. This study examines soil samples from three different locations to detect the presence of PCBs using gas chromatography. The concentration of PCBs in the analyzed samples was determined using this method, and the obtained values were compared with the legally prescribed maximum allowable concentrations. The results indicate that all measured concentrations are within the permissible limits.