一种建材所致室内氡暴露剂量的矩阵评价方法

摘要/Abstract

摘要： 为使室内氡暴露剂量评估更加具有系统性和普遍适用性,利用矩阵构建了一种建材所致室内氡暴露剂量的评价方法。该方法基于室内氡浓度模型、人员暴露剂量估算模型及相应标准,同时考虑建材氡析出率、房屋结构尺寸、室内换气率以及人员暴露时长等因素,将不同情况下的复杂计算转化为矩阵,最终得到在不同换气率和不同暴露时长情况下的室内人员氡暴露剂量等级。以一处已知房屋尺寸和各建材氡析出率的居室为例,使用本方法对其室内氡暴露剂量进行了分析和评估,以查表的方式快速得到了不同换气率和暴露时长下室内氡暴露剂量等级。

关键词: 建材, 氡析出率, 室内氡暴露, 矩阵

Abstract: In order to make the evaluation of indoor radon exposure dose more systematic and universally applicable, an evaluation method of indoor radon exposure dose caused by building materials was established by using matrix. Based on indoor radon concentration model, personnel exposure dose estimation model and standards, four factors including radon exhalation rate of building materials, building structure size, indoor air exchange rate and personnel exposure time were combined in this method. The complex calculation under different conditions is converted into the matrices. Using this method, the radon exposure dose levels of indoor personnel under different air exchange rates and different exposure duration can be obtained. Taking a room with known size and known radon exhalation rate of building materials as an example, this method was used to analyze and evaluate the indoor radon exposure dose. The indoor radon exposure dose levels under different ventilation rates and exposure duration were quickly and simply obtained from reference table.

Key words: building materials, radon exhalation, indoor radon exposure, matrix

中图分类号:

X820

徐鹏程, 曾志, 马豪, 孙博文, 李君利. 一种建材所致室内氡暴露剂量的矩阵评价方法[J]. 辐射防护, 2023, 43(3): 249-256.

XU Pengcheng, ZENG Zhi, MA Hao, SUN Bowen, LI Junli. An evaluation method of indoor radon exposure dose matrix caused by building materials[J]. RADIATION PROTECTION, 2023, 43(3): 249-256.

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