Factors Controlling the Spatial and Temporal Variability in Groundwater 222Rn and U Levels

• DOI: 10.3390/w11091796
• Publication Date: 2019-08-29T15:26:22Z
• Authors: Soo Young Cho; Min-Ho Koo; Byong Wook Cho; Youn-Young Jung; Yong Hwa Oh
• Keywords: Lithology

Radon (222Rn) and uranium (U) measurements were conducted in 98 groundwater samples Yongin area, Korea to identify the factors controlling their levels spatial distributions. Groundwater obtained from different depth of wells used for drinking water irrigation. 222Rn U concentrations measured using a liquid scintillation counter (LSC) equipped with pulse-shape analyzer inductively coupled plasma mass spectrometers (ICP-MS), respectively. Large variations observed U, ranging between 0.6 ± 0.1–673.7 8.7 Bq L−1 0.02–117.00 µg L−1, Correlation analysis revealed no significant relationship field parameters (temperature, electrical conductivity, pH, dissolved oxygen) or concentrations. The fact that higher granite areas than gneiss suggests lithology plays role distributions two radionuclides. Furthermore, behaviors have been affected by existence fault well depth. Especially, temporal monitoring shallow may be controlled variation rainfall artificial effects such as curtain cultivation winter season this study area.