Indoor radon and thoron from building materials: Analysis of humidity, air exchange rate, and dose assessment

作者: Ahmad Ciptadi Syuryavin , Seongjin Park , Muttaqin Margo Nirwono , Sang Hoon Lee

DOI: 10.1016/J.NET.2020.03.013

关键词:

摘要: Abstract Building materials contribute significantly to the indoor radon and thoron levels. Therefore, parameters that influence exhalation rates of from building material need be analyzed closely. As a preliminary study, effects humidity on were measured using system with an accumulation chamber RAD7 detector for Korean brick, soil, Indonesian brick. Resulting doses person who resides in room constructed assessed by UNSCEAR method different air exchange rates. The measurements have revealed brick exhaled highest while lowest thoron. Results showed typical low dense material, rate will increase until reached its maximum at certain value remain saturated above it. Analysis concentration effective dose is strongly affected (ACH). This about 66 times decrease 0.00 h−1 those 0.50 ACH factor 2 0.80 h−1. In case thoron, doesn't significant dose.

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