Kiattipong Kamdee, Jose A Corcho Alvarado, Monthon Yongprawat, Occapasorn Occarach, Vanachawan Hunyek, Arpakorn Wongsit, Chakrit Saengkorakot, Patchareeya Chanruang, Chalermpong Polee, Nichtima Uapoonphol, Jennifer Mabry, Nicolo Romeo, Darren Hillegonds, Jake C Zappala, Peter Mueller, Takuya Matsumoto
Krypton-81 was applied to investigate the age of groundwater in the aquifer system in the Bangkok metropolitan and vicinity areas. Stable (2 H, 18 O and 13 C) and radioactive (3 H, 85 Kr and 14 C) isotopes and noble gases were applied in parallel. Low levels of 14 C and significant radiogenic 4 He confirm that groundwater in the deep aquifers is older than 30 ka. 81 Kr analysis identified groundwater with ages ranging from 17 to 300 ka. At some sites, large age discrepancies between 81 Kr and 14 C indicated that inter-aquifer mixing is likely occurring...
October 9, 2023: Isotopes in Environmental and Health Studies