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Using 81Kr and isotopic tracers to characterise old groundwater in the Bangkok metropolitan and vicinity areas

Journal Article · · Isotopes in Environmental and Health Studies (Online)
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  1. Thailand Institute of Nuclear Technology (TINT), Nakhon Nayok (Thailand)
  2. Federal Office for Civil Protection (FOCP), Spiez (Switzerland). Spiez Laboratory
  3. Ministry of Natural Resources and Environment, Bangkok (Thailand). Department of Groundwater Resources
  4. International Atomic Energy Agency (IAEA), Vienna (Austria)
  5. Argonne National Laboratory (ANL), Argonne, IL (United States)
Krypton-81 was applied to investigate the age of groundwater in the aquifer system in the Bangkok metropolitan and vicinity areas. Stable (2H, 18O and 13C) and radioactive (3H, 85Kr and 14C) isotopes and noble gases were applied in parallel. Low levels of 14C and significant radiogenic 4He confirm that groundwater in the deep aquifers is older than 30 ka. 81Kr analysis identified groundwater with ages ranging from 17 to 300 ka. At some sites, large age discrepancies between 81Kr and 14C indicated that inter-aquifer mixing is likely occurring. The interpretation of the noble gases suggests that groundwaters in the deeper aquifers, with apparent ages of 300 to 10 ka, have recharged in slightly colder and wetter climates than those found in the upper aquifers with apparent ages < 10 ka. Degradation of water quality from seawater intrusion was identified in the upper four aquifers. This was also evidenced by higher δ18O and δ2H values, typical of seawater. The four deeper aquifers contain high quality water characterised by less enriched 18O and 2H. In conclusion, this work presents new findings of very old groundwater in the Bangkok aquifer system.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
2523633
Journal Information:
Isotopes in Environmental and Health Studies (Online), Journal Name: Isotopes in Environmental and Health Studies (Online) Journal Issue: 4-6 Vol. 59; ISSN 1477-2639
Publisher:
Taylor & FrancisCopyright Statement
Country of Publication:
United States
Language:
English

References (54)

Validity of radiocarbon dates on ground water journal April 1975
Assessment Of A Groundwater Flow Model Of The Bangkok Basin, Thailand, Using Carbon-14-Based Ages And Paleohydrology journal April 1996
Use of isotope hydrology for groundwater resources study in Upper Chi river basin journal March 2013
Improving Groundwater Model in Regional Sedimentary Basin Using Hydraulic Gradients journal May 2020
Hydrogeochemical and isotopic characterization of groundwater salinization in the Bangkok aquifer system, Thailand journal August 2012
37Ar and81Kr in the atmosphere journal October 1969
Helium accumulation in groundwater. II: A model for the accumulation of the crustal 4He degassing flux journal November 1985
Measurement of 81Kr in the atmosphere journal March 1997
Comparison of 4He ages and 14C ages in simple aquifer systems: implications for groundwater flow and chronologies journal September 2000
Late Quaternary geology of the Lower Central Plain, Thailand journal August 2000
Using 3H and 14C to constrain the degree of closed-system dissolution of calcite in groundwater journal May 2013
Dating groundwater in the Bohemian Cretaceous Basin: Understanding tracer variations in the subsurface journal February 2013
The age of groundwater – Definitions, models and why we do not need this term journal November 2014
A new shallow underground gas-proportional counting lab—First results and Ar-37 sensitivity journal November 2013
A graphical method to evaluate predominant geochemical processes occurring in groundwater systems for radiocarbon dating journal July 2012
Revision of Fontes & Garnier's model for the initial 14C content of dissolved inorganic carbon used in groundwater dating journal August 2013
Setting a limit on anthropogenic sources of atmospheric 81Kr through Atom Trap Trace Analysis journal March 2017
A review of single-sample-based models and other approaches for radiocarbon dating of dissolved inorganic carbon in groundwater journal January 2016
Land subsidence in Bangkok, Thailand journal February 2006
Application of combined 81Kr and 4He chronometers to the dating of old groundwater in a tectonically active region of the North China Plain journal July 2018
Krypton-81 dating of the deep Continental Intercalaire aquifer with implications for chlorine-36 dating journal April 2020
Origin of water masses in Floridan Aquifer System revealed by 81Kr journal September 2021
An atom counter for measuring 81Kr and 85Kr in environmental samples journal August 2012
Using 81Kr and noble gases to characterize and date groundwater and brines in the Baltic Artesian Basin on the one-million-year timescale journal May 2017
Underground production of 81Kr detected in subsurface fluids journal February 2021
Krypton-81 in groundwater of the Culebra Dolomite near the Waste Isolation Pilot Plant, New Mexico journal May 2014
Evaluating 5 decades of atmospheric 85Kr measurements in the southern hemisphere to derive an input function for dating water and ice with implications for interhemispheric circulation and the global 85Kr emission inventory journal December 2020
Assessing tritium contamination in Thailand's rainwater: A study of environmental monitoring and nuclear surveillance journal June 2023
A review of radioactive isotopes and other residence time tracers in understanding groundwater recharge: Possibilities, challenges, and limitations journal December 2017
Modelling 85Kr datasets with python for applications in tracer hydrology and to investigate atmospheric circulation journal January 2021
Vegetation changes from the late Pleistocene through the Holocene from three areas of archaeological significance in Thailand journal January 2004
Latest development of radiokrypton dating – A tool to find and study paleogroundwater journal May 2020
Reconstruction of past climate conditions over central Europe from groundwater data journal November 2011
A Contribution to the Interpretation of 14 C Groundwater Ages Considering the Example of a Partially Confined Sandstone Aquifer journal January 1983
Interpretation of dissolved atmospheric noble gases in natural waters journal September 1999
One million year old groundwater in the Sahara revealed by krypton-81 and chlorine-36: NUBIAN AQUIFER AGE journal March 2004
Modeling excess air and degassing in groundwater by equilibrium partitioning with a gas phase: MODELING GAS PARTITIONING journal August 2008
Atmospheric 81 Kr as an Integrator of Cosmic‐Ray Flux on the Hundred‐Thousand‐Year Time Scale journal February 2020
Determination of the initial 14 C activity of the total dissolved carbon: A review of the existing models and a new approach journal April 1979
Palaeotemperature reconstruction from noble gases in ground water taking into account equilibration with entrapped air journal June 2000
Continental degassing of 4He by surficial discharge of deep groundwater journal December 2014
Widespread six degrees Celsius cooling on land during the Last Glacial Maximum journal May 2021
Late Pleistocene human paleoecology in the highland savanna ecosystem of mainland Southeast Asia journal August 2021
Radiokrypton unveils dual moisture sources of a deep desert aquifer journal July 2019
Application of isotope techniques to study groundwater resources in the unconsolidated aquifers along the Ping River (Thailand) journal March 2020
Using isotope data to characterize and date groundwater in the southern sector of the Guaraní Aquifer System journal September 2020
Principles and uncertainties of 14C age estimations for groundwater transport and resource evaluation journal December 2020
Effect of Climate Change on Groundwater Age of Thailand’s Lower Chao Phraya Basin journal October 2019
Lower Groundwater 14 C Age by Atmospheric CO 2 Uptake During Sampling and Analysis : P.K. Aggarwal et al. Ground Water xx, no. x: xx-xx journal August 2013
Groundwater Age and Groundwater Age Dating journal May 2008
The IAEA’s Coordinated Research Project on “Estimation of Groundwater Recharge and Discharge by Using the Tritium, Helium-3 Dating Technique”: In Lieu of a Preface journal January 2017
Evaluation of Land Subsidence during Groundwater Recovery journal August 2022
Monitoring Land Subsidence: The Challenges of Producing Knowledge and Groundwater Management Indicators in the Bangkok Metropolitan Region, Thailand journal August 2022
Distributions of Groundwater Age under Climate Change of Thailand’s Lower Chao Phraya Basin journal December 2020

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