Analityczne aspekty oceny jakości zanieczyszczonych wód podziemnych

Groundwater in the vicinity of two municipal landfills, Sianów and Karlino, has been analyzed for many years. In the period of 1982-1992, the presence of various mineral contaminants, including heavy metals, was detected in the groundwater samples collected in these areas. Since 1997, the groundwater samples have been analyzed also for the presence of PAHs. The concentrations of the pollutants in question were measured by gas chromatography. In spite of excellent apparatus and trained personel, the qualitative and quantitative evaluation of the samples raised certain problems, which may be roughly itemized as follows - full absorption of the compound in the stationary phase of the chromatographic column, and desorption of the component from that phase. A number of PAHs (including benzo(a)pyrene, which is a carcinogenic species) were detected in the groundwater samples taken at points of potential contact with leachates from the landfill. The results were processed using the Statistica program, which enabled crucial correlations between particular parameters to be found.