Time and Place Changes in pH And Conductivity in the Water of Čaradice Stream / Časov É a Priestorov É Zmeny pH a Vodivosti vo Vode Čaradického Potoka

During 2005-2010, we measured pH and conductivity values in the watercourse Čaradice stream, which flows from its spring in Pohronský Inovec Mountains. The average pH value for the whole research period was 7.76. Depending on the time of sampling, its maximum average value for the whole period was found in July and August (7.96) and minimum average value was detected in the month of January (7.64). Depending on the sampling sites, its lowest average value for the whole period was recorded under the forest eco-system of Pohronský Inovec (7.39) and the highest under the water reservoir (8.0), which could have been caused by a greater number of autotrophic organisms in the water of the water reservoir, which reduced soluble CO₂ from the water. The average conductivity value for the whole research period was 39.72 mS.m^-1. The lowest average value, depending on the sampling time throughout the research period, was found in March (23.49 mS.m^-1) which was probably caused by snowmelt and higher water flow in the watercourse, and maximum in the month of September (54,88 mS.m^-1). Depending on the sampling sites, the highest average value (51.62 mS.m-1) was found near the village Kozárovce, which is possibly caused by releasing unclean wastewater into the watercourse, as the wastewater treatment plant has not been built in the village.