JOURNAL ARTICLE

Assessment of annual effective doses from indoor radon and thoron in Doi Lo, Chiang Mai, Thailand.

  • Published In: Radiation Protection Dosimetry, 2024, v. 200, n. 16-18. P. 1715 1 of 3

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

  • Authored By: Thumvijit, Tarika; Somboon, Siriprapa; Tapanya, Monruedee; Ruktinnakorn, Kewalin; Kranrod, Chutima; Tokonami, Shinji; Chanyotha, Supitcha; Sriburee, Sompong 3 of 3

Abstract

This study focuses on assessing indoor radon, thoron, and their progeny concentrations in residences within the Doi Lo district of Chiang Mai, Thailand, to estimate the annual effective radiation dose to residents. Measurements from 44 dwellings showed radon concentrations ranging from 17 to 118 Bq/m³ and thoron from 12 to 72 Bq/m³, with radon progeny (equilibrium-equivalent radon concentration, EERC) and thoron progeny (equilibrium-equivalent thoron concentration, EETC) also quantified. The average annual effective dose from radon was higher than that from thoron, with total doses ranging from 0.5 to 5 mSv per year, all below the International Commission on Radiological Protection (ICRP) recommended limit. The findings highlight radon as the primary contributor to radiation exposure indoors in this region and suggest that improved ventilation could reduce exposure, although current levels are not considered a significant lung cancer risk.

Additional Information

  • Source:Radiation Protection Dosimetry. 2024/11, Vol. 200, Issue 16-18, p1715
  • Document Type:Article
  • Subject Area:Law
  • Publication Date:2024
  • ISSN:01448420
  • DOI:10.1093/rpd/ncae130
  • Accession Number:180905386
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