Volume 42 Issue 8
Aug.  2023
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Lijun Song, Wen Liu, Shibin Zhao, Chunqian Li, Jinjia Guo, Natasha Dimova, Bochao Xu. Measuring 222Rn in aquatic environment via Pulsed Ionization Chamber Radon Detector[J]. Acta Oceanologica Sinica, 2023, 42(8): 185-189. doi: 10.1007/s13131-023-2183-9
Citation: Lijun Song, Wen Liu, Shibin Zhao, Chunqian Li, Jinjia Guo, Natasha Dimova, Bochao Xu. Measuring 222Rn in aquatic environment via Pulsed Ionization Chamber Radon Detector[J]. Acta Oceanologica Sinica, 2023, 42(8): 185-189. doi: 10.1007/s13131-023-2183-9

Measuring 222Rn in aquatic environment via Pulsed Ionization Chamber Radon Detector

doi: 10.1007/s13131-023-2183-9
Funds:  The National Natural Science Foundation of China under contract Nos 42130410, 41876075 and U1906210; the Fundamental Research Funds for the Central Universities under contract No. 201962003.
More Information
  • Corresponding author: E-mail: xubc@ouc.edu.cn
  • Received Date: 2022-06-22
  • Accepted Date: 2022-08-15
  • Available Online: 2023-03-15
  • Publish Date: 2023-08-31
  • Radon (Rn) is a naturally occurring radioactive inert gas in nature, and 222Rn has been routinely used as a powerful tracer in various aquatic environmental research on timescales of hours to days, such as submarine groundwater discharge. Here we developed a new approach to measure 222Rn in discrete water samples with a wide range of 222Rn concentrations using a Pulsed Ionization Chamber (PIC) Radon Detector. The sensitivity of the new PIC system is evaluated at 6.06 counts per minute for 1 Bq/L when a 500 mL water sample volume is used. A robust logarithmic correlation between sample volumes, ranging from 250 mL to 5000 mL, and system sensitivity obtained in this study strongly suggests that this approach is suitable for measuring radon concentration levels in various natural waters. Compared to the currently available methods for measuring radon in grab samples, the PIC system is cheaper, easier to operate and does not require extra accessories (e.g., drying tubes etc.) to maintain stable measurements throughout the counting procedure.
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  • Baskaran M. 2016. Radon: A Tracer for Geological, Geophysical and Geochemical Studies. Cham: Springer, 1–254
    Broecker W S, Li Yuanhui, Cromwell J. 1967. Radium-226 and radon-222: concentration in Atlantic and Pacific Oceans. Science, 158(3806): 1307–1310. doi: 10.1126/science.158.3806.1307
    Burnett W C, Kim G, Lane-Smith D. 2001. A continuous monitor for assessment of 222Rn in the coastal ocean. Journal of Radioanalytical and Nuclear Chemistry, 249(1): 167–172. doi: 10.1023/A:1013217821419
    Cable J E, Burnett W C, Chanton J P, et al. 1996. Estimating groundwater discharge into the northeastern Gulf of Mexico using radon-222. Earth and Planetary Science Letters, 144(3–4): 591–604
    Cantaluppi C, Zannoni D, Cianchi A, et al. 2021. Methods for radioactivity measurements in drinking water using gamma spectrometry. Journal of Environmental Radioactivity, 232: 106566. doi: 10.1016/j.jenvrad.2021.106566
    Cook P G, Favreau G, Dighton J C, et al. 2003. Determining natural groundwater influx to a tropical river using radon, chlorofluorocarbons and ionic environmental tracers. Journal of Hydrology, 277(1–2): 74–88
    D’Alessandro W, Vita F. 2003. Groundwater radon measurements in the Mt. Etna area. Journal of Environmental Radioactivity, 65(2): 187–201. doi: 10.1016/S0265-931X(02)00096-6
    Gavrilyuk Y M, Gangapshev A M, Gezhaev A M, et al. 2015. High-resolution ion pulse ionization chamber with air filling for the 222Rn decays detection. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 801: 27–33
    Guo Xiaoyi, Xu Bochao, Burnett W C, et al. 2020. Does submarine groundwater discharge contribute to summer hypoxia in the Changjiang (Yangtze) River Estuary?. Science of The Total Environment, 719: 137450
    Jacob N, Babu D S D, Shivanna K. 2009. Radon as an indicator of submarine groundwater discharge in coastal regions. Current Science, 97(9): 1313–1320
    Kelleher K, Wong J, León-Vintró L, et al. 2017. International Rn-222 in drinking water interlaboratory comparison. Applied Radiation and Isotopes, 126: 270–272. doi: 10.1016/j.apradiso.2017.01.036
    Key R M, Guinasso N L Jr, Schink D R. 1979. Emanation of radon-222 from marine sediments. Marine Chemistry, 7(3): 221–250. doi: 10.1016/0304-4203(79)90041-0
    Kim G, Burnett W C, Dulaiova H, et al. 2001. Measurement of224Ra and 226Ra activities in natural waters using a radon-in-air monitor. Environmental Science & Technology, 35(23): 4680–4683
    Lambert M J, Burnett W C. 2003. Submarine groundwater discharge estimates at a Florida coastal site based on continuous radon measurements. Biogeochemistry, 66(1–2): 55–73
    Lee J M, Kim G. 2006. A simple and rapid method for analyzing radon in coastal and ground waters using a radon-in-air monitor. Journal of Environmental Radioactivity, 89(3): 219–228. doi: 10.1016/j.jenvrad.2006.05.006
    Li Chunqian, Zhao Shibin, Zhang Chenglun, et al. 2022. Further refinements of a continuous radon monitor for surface ocean water measurements. Frontiers in Marine Science, 9:1047126
    Moore W S. 1976. Sampling 228Ra in the deep ocean. Deep-Sea Research and Oceanographic Abstracts, 1976, 23(7): 647–651
    Savatier M, Rocha C. 2021. Rethinking tracer-based (Ra, Rn, salinity) approaches to estimate point-source submarine groundwater discharge (SGD) into coastal systems. Journal of Hydrology, 598: 126247. doi: 10.1016/j.jhydrol.2021.126247
    Schmidt A, Schlueter M, Melles M, et al. 2008. Continuous and discrete on-site detection of radon-222 in ground- and surface waters by means of an extraction module. Applied Radiation and Isotopes, 66(12): 1939–1944. doi: 10.1016/j.apradiso.2008.05.005
    Seo J, Kim G. 2021. Rapid and precise measurements of radon in water using a pulsed ionization chamber. Limnology and Oceanography: Methods, 19(4): 245–252. doi: 10.1002/lom3.10419
    Singaraja C, Chidambaram S, Jacob N, et al. 2016. Radon levels in groundwater in the Tuticorin district of Tamil Nadu, South India. Journal of Radioanalytical and Nuclear Chemistry, 307(2): 1165–1173. doi: 10.1007/s10967-015-4312-1
    Wang Xiaoxiong, Chen Xiaogang, Liu Jianan, et al. 2021. Radon traced seasonal variations of water mixing and accompanying nutrient and carbon transport in the Yellow-Bohai Sea. Science of The Total Environment, 784: 147161. doi: 10.1016/j.scitotenv.2021.147161
    Yu Zhongbo, Li Minjuan, Liu Yunchen, et al. 2020. Study on hydraulic exchange of river water and groundwater based on radon isotope. Journal of Hohai University: Natural Sciences (in Chinese), 48(1): 8–13
    Zhang Xiaojie, Xu Bochao, Xia Dong, et al. 2016. Using natural radium and radon isotopes trace the water transport process and nutrients distribution in the Yellow River Estuary under the influence of the Water-Sediment Regulation Scheme. Haiyang Xuebao (in Chinese), 38(8): 36–43
    Zhang Xiaojie, Xu Xiaohan, Xiang Zhanchang, et al. 2018. Distribution characteristics and influence factors of radium and radon isotopes in the lower reaches of the Yellow River. Marine Environmental Science (in Chinese), 37(1): 1–7
    Zhao Chongde. 1993. Determination of 222Rn in the water. Atomic Energy Science and Technology (in Chinese), (1): 62–65
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