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The effects of covering materials on indoor Rn concentrations in offices in Hong Kong

Authors
Journal
Journal of Environmental Radioactivity
0265-931X
Publisher
Elsevier
Publication Date
Volume
47
Issue
2
Identifiers
DOI: 10.1016/s0265-931x(99)00030-2
Keywords
  • Radon
  • Buildings
  • Coverings
  • Offices
  • Hong Kong

Abstract

Abstract The variation of Rn concentrations in 134 offices with different covering materials cladded on internal building surfaces, including walls, ceilings and floors, were measured. The three commonest combinations (87 sites) of covering materials for the walls, ceilings and floors in Hong Kong are (A): wall paper, fibre board, carpet; (B): paint, paint and plastic tile and (C): paint, fibre board, plastic tile. The average Rn concentrations for combinations (A) and (B) were about the same, while that for combination (C) was significantly lower than those for (A) and (B). A person working in an office with combination (C) can receive an average annual tracheobronchial equivalent dose smaller than one working in an office with combinations (A) and (B) by an amount as large as 0.8 mSv.

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