Vol. 25 No. 1 (2026): Mapana Journal of Sciences
Research Articles

Measurement of Radon Concentration in Water Samples Collected around Kaveri River Basin of Old Mysuru Region

  • Sadashivaiah Thimmaiah,
  • Niranjan R S,
  • Ganesh K E,
  • Yashaswini T,
  • Poojitha C G,
  • Ningappa C
Sadashivaiah Thimmaiah
Department of Physics, Yuvaraja’s College, University of Mysore, Mysuru-570005, India
Bio
Niranjan R S
Department of Physics, Government Science College, Hassan-573201, India
Bio
Ganesh K E
Department of Physics, B.M.S. College of Engineering, Bengaluru - 560019, India
Bio
Yashaswini T
Seshadripuram Institute of Technology, Mysuru – 571311, India
Bio
Poojitha C G
Bio
Ningappa C
Seshadripuram Institute of Technology, Mysuru

Published 2026-02-17

Keywords

  • Radon,
  • Inhalation dose,
  • Ingestion dose,
  • Annual effective dose

Copyright (c) 2026

Creative Commons License

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Abstract

The present study intends to evaluate the concentration of radon in water samples around Kaveri River basin of old Mysuru region, Karnataka. Concentration of radon measurements were done using Smart RnDuo monitor. The obtained radon concentration of water samples in the study area varied from 0.52 ± 0.1 Bq/l to 99.66 ± 1.59 Bq/l with geometrical mean value of 6.67 ± 0.27 Bq/l. In this study 100% of the borewell water samples exceeded the EPA’s MCL of 11.1 Bq/l and 55% of the borewell water samples exceeded the UNSCEAR’s MCL of 40 Bq/l. The estimated annual effective dose varies from 1.43 µSv/y to 272.07 µSv/y with a geometrical value of 18.20 mSv/y. All surface water samples were below 0.1 mSv/y and 55% of borewell water samples were found to be higher than the safe limit of 0.1 mSv/y as prescribed by WHO.

References

  1. International Commission on Radiological Protection (1990). Recommendation of the International Commission on Radiological Protection. ICRU Publication, 60.
  2. Baias, P. F., Hofmann, W., Winkler-Heil, R., Cosma, C., & Duliu, O. G. (2010). Lung dosimetry for inhaled radon progeny in smokers. Radiation protection dosimetry, 138(2), 111-118.
  3. Ramola, R. C., Choubey, V. M., Saini, N. K., & Bartarya, S. K. (1999). Occurrence of radon in the drinking water of Dehradun City, India. Indoor and Built Environment, 8(1), 67-70.
  4. Voronov, A. N. (2004). Radon-rich waters in Russia. Environmental Geology, 46(5), 630-634.
  5. Mamun, A., & Alazmi, A. S. (2023). Risk assessment of radon exposure by ingestion and inhalation of groundwater within different age groups. Groundwater Monitoring & Remediation, 43(1), 69-77.
  6. Bajwa, B. S., Mahajan, S., Singh, H., Singh, J., Singh, S., Walia, V., & Virk, H. S. (2005). A study of groundwater radon concentrations in Punjab and Himachal Pradesh States, India. Indoor and Built Environment, 14(6), 481-486.
  7. Choubey, V. M., & Ramola, R. C. (1997). Correlation between geology and radon levels in groundwater, soil and indoor air in Bhilangana Valley, Garhwal Himalaya, India. Environmental Geology, 32(4), 258-262.
  8. United Nations Scientific Committee on the Effects of Atomic Radiation (2000) ,Effects and risk of ionising radiation, Report to the General Assembly, United Nations, New York.
  9. Henshaw, D. L., Eatough, J. P., & Richardson, R. B. (1990). Radon as a causative factor in induction of myeloid leukaemia and other cancers. The Lancet, 335(8696), 1008-1012.
  10. USEPA (1991). Federal Register 40 parts 141 and 142; National primary Drinking Water regulations; Radionuclides; proposed Rule (U.S. Environmental Protection Agency). U.S. Government Printing Office.
  11. Sharma, A., & Rajamani, V. (2001). Weathering of charnockites and sediment production in the catchment area of the Cauvery River, southern India. Sedimentary geology, 143(1-2), 169-184.
  12. Cauvery, t. N. (2020). Geochemical appraisal of sediments from river cauvery, tamil nadu: an insight into its sediment maturity, provenance, and tectonic setting 11(2), 1-10.
  13. Keesari, T., Mohokar, H. V., Sahoo, B. K., & Mallesh, G. (2014). Assessment of environmental radioactive elements in groundwater in parts of Nalgonda district, Andhra Pradesh, South India using scintillation detection methods. Journal of Radioanalytical and Nuclear Chemistry, 302(3), 1391-1398.
  14. Poojitha, C. G., Sahoo, B. K., Ganesh, K. E., Pranesha, T. S., & Sapra, B. K. (2019). A model to predict 238U in aquifer rock based on 222Rn and 226Ra measurement in groundwater samples: a case study at South Bengaluru city, Karnataka, India. Radiation Protection Dosimetry, 185(1), 58-66.
  15. Raghavayya, M., Iyengar, M. A. R., & Markose, P. M. (1979, January). Estimation of radium-226 by emanometry. In Safety aspects in nuclear fuel cycle: Sixth IARP conference, Bhabha Atomic Research Centre, Bombay, March 7-9, 1979-Programme and synopses (No. INIS-mf--5372, pp. 33-35).
  16. United Nations Scientific Committee on the Effects of Atomic Radiation, & Annex, B. (2000). Exposures from natural radiation sources. Cosmic rays, 9(11).
  17. Naqvi, S. M., Sawkar, R. H., Rao, D. S., Govil, P. K., & Rao, T. G. (1988). Geology, geochemistry and tectonic setting of Archaean greywackes from Karnataka nucleus, India. Precambrian Research, 39(3), 193-216.
  18. Srinivasa, E., Rangaswamy, D. R., Suresh, S., Nagabhushana, S. R., Sannappa, J., & Umehsareddy, K. (2018). Measurement of radon concentration in drinking water and estimation of radiation dose to the publics of Hassan city, Karnataka, India. Radiation Protection and Environment, 41(3), 132-135.
  19. Sannappa, J., Suresh, S., Rangaswamy, D. R., & Srinivasa, E. (2020). Estimation of ambient gamma radiation dose and drinking water radon concentration in coastal taluks of Uttara Kannada district, Karnataka. Journal of Radioanalytical and Nuclear Chemistry, 323(3), 1459-1466.
  20. Choubey, V. M., Bartarya, S. K., Saini, N. K., & Ramola, R. C. (2001). Impact of geohydrology and neotectonic activity on radon concentration in groundwater of intermontane Doon Valley, Outer Himalaya, India. Environmental Geology, 40(3), 257-266.
  21. Suresh, S., & Srinivasa, E. (2022). Study on Estimation of Inhalation and Ingestion Dose due to 222 Rn Concentration in Different Types of Ground Water of Some Taluks of Uttara Kannada District, Karnataka, India. Journal of Scientific Research, 14(3), 891-900.
  22. Suresh, S., Rangaswamy, D. R., Srinivasa, E., & Sannappa, J. (2020). Measurement of radon concentration in drinking water and natural radioactivity in soil and their radiological hazards. Journal of radiation research and applied sciences, 13(1), 12-26.
  23. Bakac, M., & Kumru, M. N. (2000). Distribution of radionuclides in sediments, soils and waters along Gediz River. Turkish Journal of Nuclear Sciences, 27.
  24. EPA, U. (1999). Radon in drinking water health risk reduction and cost analysis. Fed Reg, 64(38), 9560-9599.
  25. United Nations Scientific Committee on the Effects of Atomic Radiation. (2010). Sources and effects of ionizing radiation, united nations scientific committee on the effects of atomic radiation report, volume I: Report to the general assembly, with scientific annexes A and B-sources. United Nations.
  26. Committee, S. (2004). Directive 2001/82/EC of the European Parliament and of the Council of 6 November 2001 on the Community code relating to veterinary medicinal products. Official Journal L, 311(28/11), 1-66.
  27. World Health Organization. (2004). Guidelines for drinking-water quality (Vol. 1). World health organization.
  28. European Commission (2001) Commission recommendation of 20th December 2001 on the protection of the public against exposure to radon in drinking water. Euratom, 982/ L344/85.
  29. Singla, A. K., Kanse, S., Kansal, S., Rani, S., & Mehra, R. (2023). A comprehensive study of radon in drinking waters of Hanumangarh district and the assessment of resulting dose to local population. Environmental Geochemistry and Health, 45(2), 443-455.
  30. Abojassim, A. A., Kadhim, S. H., Ali Mraity, H. A., & Munim, R. R. (2017). Radon levels in different types of bottled drinking water and carbonated drinks in Iraqi markets. Water Science and Technology: Water Supply, 17(1), 206-211.
  31. Cho, B. W., & Choo, C. O. (2019). Geochemical behavior of uranium and radon in groundwater of Jurassic granite area, Icheon, Middle Korea. Water, 11(6), 1278.
  32. Ajiboye, Y., Isinkaye, M. O., Badmus, G. O., Faloye, O. T., & Atoiki, V. (2022). Pilot groundwater radon mapping and the assessment of health risk from heavy metals in drinking water of southwest, Nigeria. Heliyon, 8(2).
  33. Elzain, A. E. A. (2014). Measurement of Radon-222 concentration levels in water samples in Sudan. Advances in Applied Science Research, 5(2), 229-234.
  34. Abojassim, A. (2017). Alpha particles concentrations from soil samples of Al-Najaf/Iraq. Polish Journal of Soil Science, 50(2).
  35. Binesh, A., Arabshahi, H., & Pourhabib, Z. (2011). Radioactivity and dose assessment of heavy radioactive pollution, radon and radium from water sources of 3 northern regions in Iran. Int. J. Phys. Sci, 6(35), 7969-7977.
  36. Büyükuslu, H., Özdemir, F. B., Öge, T. Ö., & Gökce, H. (2018). Indoor and tap water radon (222Rn) concentration measurements at Giresun University campus areas. Applied Radiation and Isotopes, 139, 285-291.
  37. Cho, B. W., Kim, H. K., Kim, M. S., Hwang, J. H., Yoon, U., Cho, S. Y., & Choo, C. O. (2019). Radon concentrations in the community groundwater system of South Korea. Environmental monitoring and assessment, 191(3), 189.
  38. Marković, S., Vučković, B., Nikolić-Bujanović, L., Kurilić, S. M., Todorović, N., Nikolov, J., ... & Đokić, B. (2020). Heavy metals and radon content in spring water of Kosovo. Scientific reports, 10(1), 10359.
  39. Kessongo, J., Bahu, Y., Inácio, M., Peralta, L., & Soares, S. (2020). Radon concentration potential in Bibala municipality water: Consequences for public consumption. Radiation Physics and Chemistry, 173, 108951.
  40. Marques, A. L., Dos Santos, W., & Geraldo, L. P. (2004). Direct measurements of radon activity in water from various natural sources using nuclear track detectors. Applied radiation and isotopes, 60(6), 801-804.
  41. Nikolopoulos, D., & Louizi, A. (2008). Study of indoor radon and radon in drinking water in Greece and Cyprus: implications to exposure and dose. Radiation Measurements, 43(7), 1305-1314.
  42. Zhuo, W., Iida, T., & Yang, X. (2001). Occurrence of 222Rn, 226Ra, 228Ra and 238U in groundwater in Fujian Province, China. Journal of environmental radioactivity, 53(1), 111-120.
  43. Alabdula'aly, A. I. (2014). Occurrence of radon in groundwater of Saudi Arabia. Journal of environmental radioactivity, 138, 186-191.
  44. Niranjan, R. S., Ningappa, C., & Yashaswini, T. (2018). Concentration of radon in dwellings of Hemavathi river basin, Karnataka, India. Radiation Protection Dosimetry, 181(3), 269-276.
  45. Singh, P., Singh, P., Singh, S., Sahoo, B. K., Sapra, B. K., & Bajwa, B. S. (2015). A study of indoor radon, thoron and their progeny measurement in Tosham region Haryana, India. Journal of Radiation Research and Applied Sciences, 8(2), 226-233.
  46. Yashaswini, T., Ningappa, C., Niranjan, R. S., & Sannappa, J. (2020). Radon concentration level in ground and drinking water around Kabini River basin, Karnataka. Journal of the Geological Society of India, 95(3), 273-278.
  47. Duggal, V., Sharma, S., & Mehra, R. (2020). Risk assessment of radon in drinking water in Khetri Copper Belt of Rajasthan, India. Chemosphere, 239, 124782.
  48. Rangaswamy, D. R., Srinivasa, E., Srilatha, M. C., & Sannappa, J. (2016). Measurement of radon concentration in drinking water of Shimoga district, Karnataka, India. Journal of Radioanalytical and Nuclear Chemistry, 307(2), 907-916.
  49. Srilatha, M. C., Rangaswamy, D. R., & Sannappa, J. (2014). Studies on concentration of radon and physicochemical parameters in ground water around Ramanagara and Tumkur districts, Karnataka, India. Int J Adv Sci Tech Res, 2(4), 641-660.