JOURNAL ARTICLE

Study of variation of indoor radon levels in houses and prediction of indoor concentrations using house characteristics and outdoor radon levels.

  • Published In: Radiation Protection Dosimetry, 2023, v. 199, n. 20. P. 2406 1 of 3

  • Database: Applied Science & Technology Source Ultimate 2 of 3

  • Authored By: Narasimhamurthy, Kesthur Naraseeyappa; Ashok, Godekere Visweswaraiah; Raghu, Ammannappa; Nagaiah, Ningaiah; Shashikumar, Thuruganur Siddaiah; Harish, Venkatareddy; Shivaprasad, Nambihally Gopalakrishna 3 of 3

Abstract

This article focuses on measuring and modeling the concentrations of radon-222 (^222Rn) in indoor and outdoor air in selected locations of Mandya city, Karnataka, India, using the Solid State Nuclear Track Detectors (SSNTD) technique. The study found annual mean indoor and outdoor radon concentrations of 20.5 ± 1.4 Bq m^−3 and 9.0 ± 0.5 Bq m^−3, respectively, with indoor levels well below the Indian and world averages of approximately 40 Bq m^−3. Seasonal outdoor radon variations showed the highest concentrations in winter (12.9 Bq m^−3) and lowest during the rainy season (6.9 Bq m^−3), attributed to environmental factors such as soil moisture and temperature inversion. Indoor radon concentrations were predicted using a mass balance model incorporating factors like soil and building material exhalation, ventilation rate, and outdoor radon levels; model predictions generally agreed with measured values, with deviations mainly due to uncertainties in ventilation rate estimation.

Additional Information

  • Source:Radiation Protection Dosimetry. 2023/12, Vol. 199, Issue 20, p2406
  • Document Type:Article
  • Subject Area:Chemistry
  • Publication Date:2023
  • ISSN:01448420
  • DOI:10.1093/rpd/ncad271
  • Accession Number:174386498
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