2D Semi-empirical models for predicting the entry of soil gas pollutants into buildings

被引：18

作者：

Diallo, Thierno M. O. ^{[1
]}

Collignan, Bernard ^{[2
]}

Allard, Francis ^{[1
]}

机构：

[1] La Rochelle Univ, LaSIE CNRS UMR 7356, F-17042 La Rochelle, France

[2] CSTB Hlth Div, F-77447 Marne La Vallee, France

来源：

BUILDING AND ENVIRONMENT | 2015年 / 85卷

关键词：

Soil gas pollutants; Pollutant transport; Convection; Diffusion; Semi-emprical models; Indoor air; VAPOR INTRUSION; RADON TRANSPORT; RN-222; ENTRY; DRIVEN; AIR;

D O I：

10.1016/j.buildenv.2014.11.013

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The entry and the accumulation of soil gas pollutants (Radon, VOC's, ...) into indoor environments can cause significant health risks. Some analytical and numerical models have been developed to quantify the soil gas indoor concentrations in order to assess their health risks. However, the different models include large uncertainties in understanding and assessing the indoor soil gas concentrations. Firstly, this study presents a general understanding of the behavior of these pollutants near building foundations. Secondly, it describes semi-empirical models developed to quantity the entry of these pollutants into buildings. These models consider the most encountered building substructures: supported slab, floating slab and crawl space. Particularly, these models consider the strong coupling of convection and diffusion phenomena near building foundations. The two-dimensional aspect of the phenomena is considered. The models have been evaluated by comparison with experimental data. These models can be easily integrated into building simulation tools in order to assess the soil gas concentration in indoor environments. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：1 / 16

页数：16

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