The paper characterise the group of CO2-rich (carbonated) water springs in the Carpathians, which are accompanied by exhalation of CO2. These springs called the Mofetta Tylicz are the example of the environmental and touristic unique object. We present geological and hydrogeological background as well as chemical analysis of the springs composition. The springs are characterised by the variability of the chemical composition of analysed groundwater, which indicates the need to implement a

more »

... atic monitoring. The monitoring would assess the reasons for this variability and allow the effective protection of spring waters of this area in the future.