The latest years, most of the detached dwellings in Tashkent city have been constructed with two or three floors houses by using burnt bricks. Dynamic increase of these houses with using of different building materials demands us to know about the radon quantity in the new houses. The main objective of this study is to perform measurements of radon indoor, in winter and summer, to determinate the annual effective doses and estimate the rate that exhales from soils, building materials and walls by using CR-39 detectors. The results of measurements have given the following: the mean values of indoor radon activities are varied from 62.1 to 446 Bq m−3, appropriate values of annual effective doses were within 1.67–11.12 mSv y−1. The values of radon exhalation rate were determined in the 11.2–26.0, 0.054–0.445 and 0.078–0.234 Bq m−2 h−1 for soils, building materials and walls, respectively.

中文翻译：

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用于测量塔什干市新房氡气量活动和呼气率的 CR-39 轨道探测器

近年来，塔什干市的独立屋大多是用烧砖建造的二三层楼房。这些房屋随着不同建筑材料的使用而动态增加，要求我们了解新房屋中的氡量。本研究的主要目的是在冬季和夏季对室内氡进行测量，以确定年有效剂量，并使用 CR-39 探测器估算从土壤、建筑材料和墙壁呼出的速率。测量结果表明：室内氡活度平均值在 62.1 至 446 Bq m-3 之间变化，年有效剂量的适当值在 1.67-11.12 mSv y-1 之间。氡呼出率的值在土壤的 11.2-26.0、0.054-0.445 和 0.078-0.234 Bq m-2 h-1 中确定，