Instigated by relatively high cave-air CO2 concentrations in Modrič Cave (Croatia) recorded for the purpose of speleothem-based paleoclimate research, we established preliminary monitoring radon (222Rn) within cave a 4.5-year period (2018–2022). As radioactive geogenic gas, radon, which often correlates with concentrations, presents potential health hazard cases longer exposure time concentrati...

222Rn is widely used as a tracer to detect and calculate submarine groundwater discharge in coastal zones, rivers lakes. Relatively few investigations, however, have this element for other applications hydrogeology. We analyze the relationship between activity variations water cycle sandy aquifer of Buenos Aires coast, Argentina. Groundwater levels, electrical conductivity were measured situ we...