Heuristic model for predicting the intrusion rate of contaminant vapors into buildings
The intrusion into and subsequent accumulation of contaminant vapors in buildings and family dwellings is of concern for health and safety reasons. When preparing environmental and health risk assessments, one must be able to quantify this exposure pathway in order to decide if site-specific conditi...
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| Veröffentlicht in: | Environmental science & technology 1991-08, Vol.25 (8), p.1445-1452 |
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| container_title | Environmental science & technology |
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| creator | Johnson, Paul C Ettinger, Robert A |
| description | The intrusion into and subsequent accumulation of contaminant vapors in buildings and family dwellings is of concern for health and safety reasons. When preparing environmental and health risk assessments, one must be able to quantify this exposure pathway in order to decide if site-specific conditions correspond to unacceptable indoor contaminant vapor concentrations. For cases in which contaminated-site soil cleanup levels can be negotiated based on site-specific conditions, a related problem is the determination of residual contaminant levels below which associated adverse health effect risks are deemed negligible. Unfortunately, there are currently no accepted models for predicting vapor intrusion rates, and there is considerable debate over which transport mechanisms govern the process. This paper presents a heuristic model for screening-level calculations. It incorporates both convective and diffusive mechanisms, as well as contaminant soil, and building foundation properties. |
| doi_str_mv | 10.1021/es00020a013 |
| format | Article |
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Sci. Technol</addtitle><description>The intrusion into and subsequent accumulation of contaminant vapors in buildings and family dwellings is of concern for health and safety reasons. When preparing environmental and health risk assessments, one must be able to quantify this exposure pathway in order to decide if site-specific conditions correspond to unacceptable indoor contaminant vapor concentrations. For cases in which contaminated-site soil cleanup levels can be negotiated based on site-specific conditions, a related problem is the determination of residual contaminant levels below which associated adverse health effect risks are deemed negligible. Unfortunately, there are currently no accepted models for predicting vapor intrusion rates, and there is considerable debate over which transport mechanisms govern the process. This paper presents a heuristic model for screening-level calculations. 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Sci. Technol</addtitle><date>1991-08-01</date><risdate>1991</risdate><volume>25</volume><issue>8</issue><spage>1445</spage><epage>1452</epage><pages>1445-1452</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><coden>ESTHAG</coden><abstract>The intrusion into and subsequent accumulation of contaminant vapors in buildings and family dwellings is of concern for health and safety reasons. When preparing environmental and health risk assessments, one must be able to quantify this exposure pathway in order to decide if site-specific conditions correspond to unacceptable indoor contaminant vapor concentrations. For cases in which contaminated-site soil cleanup levels can be negotiated based on site-specific conditions, a related problem is the determination of residual contaminant levels below which associated adverse health effect risks are deemed negligible. Unfortunately, there are currently no accepted models for predicting vapor intrusion rates, and there is considerable debate over which transport mechanisms govern the process. This paper presents a heuristic model for screening-level calculations. It incorporates both convective and diffusive mechanisms, as well as contaminant soil, and building foundation properties.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><doi>10.1021/es00020a013</doi><tpages>8</tpages></addata></record> |
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| identifier | ISSN: 0013-936X |
| ispartof | Environmental science & technology, 1991-08, Vol.25 (8), p.1445-1452 |
| issn | 0013-936X 1520-5851 |
| language | eng |
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| source | ACS Publications |
| subjects | 540120 - Environment, Atmospheric- Chemicals Monitoring & Transport- (1990-) 540220 - Environment, Terrestrial- Chemicals Monitoring & Transport- (1990-) AIR POLLUTION Applied sciences Atmospheric pollution BUILDINGS CALCULATION METHODS CONTAMINATION DEGASSING DIFFUSION ENVIRONMENTAL SCIENCES ENVIRONMENTAL TRANSPORT Exact sciences and technology FLUIDS GASES HAZARDS HEALTH HAZARDS INDOOR AIR POLLUTION Indoor pollution and occupational exposure LAND RECLAMATION MASS TRANSFER MATHEMATICAL MODELS MATTER POLLUTION RESIDENTIAL BUILDINGS SOILS VAPORS VOLATILE MATTER |
| title | Heuristic model for predicting the intrusion rate of contaminant vapors into buildings |
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