Pietrzak, DamianKania, JarosławKmiecik, EwaWątor, Katarzyna2019-12-302019-12-302019-12Geologos, 2019, 25, 3, s.225-229978-83-232187-4-61426-8981http://hdl.handle.net/10593/25279Knowledge of transport patterns of chemicals in groundwater is essential for environmental assessment of their potential impact. In the present study, the mobility of a chloride tracer injected into three different soils was investigated, using column experiments. The column tests were performed under steady-state conditions to determine parameters of chloride migration through soils. Based on breakthrough curves, pore-water velocity, dispersion coefficient and dispersivity constant were calculated for each soil sample using CXTFIT/STANMOD software. Pore-water velocity was in the range of 0.31 cm/min for fine sand, to 0.35 cm/min for silty sand and to 0.40 cm/min for vari-grained sand. The highest values of dispersion coefficient and dispersivity constant were observed for silty sand (0.55 cm2 /min and 1.55 cm, respectively), while the lowest value was found for fine sand (0.059 cm2 /min and 0.19 cm, respectively). Column experiments for chlorides (conservative tracer) are a preliminary stage for further research which will be undertaken to investigate migration parameters of selected neonicotinoids (reactive tracers) through different soils.enginfo:eu-repo/semantics/openAccesspore-water velocitydispersion coefficientdispersivity constantCXTFITSTANMODArtykuł