Journal
BUILDING AND ENVIRONMENT
Volume 177, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.buildenv.2020.106900
Keywords
Soil vapor intrusion; Experimental characterisation; Building ventilation; Modeling; Indoor air quality; Health risk assessment
Funding
- ADEME (APR Gesipol 2014): CSTB
- ADEME (APR Gesipol 2014): LaSIE
- ADEME (APR Gesipol 2014): Ineris
- ADEME (APR Gesipol 2014): BURGEAP
- ADEME (APR Gesipol 2014): Grand-Lyon
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This study presents a fast and nonintrusive in situ methodology to characterise the Volatile Organic Compounds (VOCs) fluxes of contaminated sites and to quantify their intrusion into future buildings built on these sites. It could be used to conduct exhaustive ground pre-characterisation and indoor air assessments for future on-site buildings. The methodology involved the use of a specific apparatus called the experimental box, representing convective and diffusive transfers of soil gas pollutants into buildings, to quantify an equivalent homogeneous concentration of the contaminant in the soil gas. Furthermore, this equivalent homogeneous concentration was used to quantify the indoor air pollutant concentration in a future building using an analytical transfer model associated with a numerical ventilation model. This methodology was applied on an experimental site. A critical analysis highlights its interest as a powerful complementary tool to constitute complementary support for decision-making methods and for human health risk assessment.
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