Decentralised ventilation efficiency for indoor radon reduction considering different environmental parameters

IF 1.1 4区 环境科学与生态学 Q4 CHEMISTRY, INORGANIC & NUCLEAR
Diana Altendorf, Hannes Grünewald, Tze-Li Liu, Jörg Dehnert, R. Trabitzsch, H. Weiss
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引用次数: 5

Abstract

ABSTRACT Radon-222 contributes to half of the natural radiation exposure of humans and is one of the main causes of lung cancer. Of particular importance for humans is the exposure to radon-222 indoors, which enters living and working areas from the soil air, e.g. through cracks in the foundations of buildings. An easy and efficient way to minimise indoor radon in dwellings can be achieved through ventilation. How meteorological parameters and the geological background can influence ventilation efficiency in reducing indoor radon has not yet been fully investigated. Therefore, a decentralised ventilation system was installed in an unoccupied flat located in a former uranium mining region to analyse the effect of already existing ventilation modes on indoor radon activity concentration. It is aimed to assess 22 different ventilation experiments that were performed within the time period of one year. Even with a strong seasonal trend with significantly lower indoor radon activity concentrations in summer compared to winter, the decentralised ventilation system was able to reduce indoor radon by up to 83 %. Thereby, strong dependencies on the experimental parameters such as ventilation type or performance level of the fans were found.
考虑不同环境参数的室内降氡分散通风效率
氡-222占人类自然辐射暴露量的一半,是肺癌的主要原因之一。对人类特别重要的是在室内暴露于氡-222,它从土壤空气中进入生活和工作区域,例如通过建筑物基础的裂缝。一种简单而有效的方法可以通过通风来减少住宅室内的氡。气象参数和地质背景对室内降氡通风效率的影响尚未得到充分研究。因此,在位于前铀矿区的一间无人居住的公寓安装了分散通风系统,以分析现有通风模式对室内氡活动浓度的影响。目的是评估在一年内进行的22种不同的通风实验。即使有强烈的季节性趋势,夏季室内氡活动浓度明显低于冬季,分散式通风系统也能够将室内氡减少高达83%。因此,发现对实验参数(如通风类型或风扇的性能水平)有很强的依赖性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
2.80
自引率
7.70%
发文量
21
审稿时长
3.0 months
期刊介绍: Isotopes in Environmental and Health Studies provides a unique platform for stable isotope studies in geological and life sciences, with emphasis on ecology. The international journal publishes original research papers, review articles, short communications, and book reviews relating to the following topics: -variations in natural isotope abundance (isotope ecology, isotope biochemistry, isotope hydrology, isotope geology) -stable isotope tracer techniques to follow the fate of certain substances in soil, water, plants, animals and in the human body -isotope effects and tracer theory linked with mathematical modelling -isotope measurement methods and equipment with respect to environmental and health research -diagnostic stable isotope application in medicine and in health studies -environmental sources of ionizing radiation and its effects on all living matter
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