API 4775 : 2009
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
SIMULATING THE EFFECT OF AEROBIC BIODEGRADATION ON SOIL VAPOR INTRUSION INTO BUILDINGS - EVALUATION OF LOW STRENGTH SOURCES ASSOCIATED WITH DISSOLVED GASOLINE PLUMES
Hardcopy , PDF
01-02-2024
English
01-04-2009
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Abstract
1 Introduction
2 Background
3 Approach
3.1 Conditions Simulated
3.2 Multi-Component Mixture Vapor Source
4 Results and Discussion
4.1 Effect of Source Concentration
4.2 Effect of First-Order Biodegradation Rate
4.3 Effect of Source Depth
4.4 Effect of Building Type
4.5 Results and Discussion for Multi-Component
Gasoline Sources
5 Evaluation of Additional Parameters
5.1 Effect of Soil Type
5.2 Effect of Foundation Crack Location
5.3 Effect of a High Moisture-Content Soil Layer
6 Discussion
6.1 Development of a Conceptual Model
6.2 Preliminary Screening
6.3 Site-Specific Assessments
7 Conclusions and Recommendations
7.1 Conclusions
7.2 Recommendations
8 References
Appendix A - Predicted Soil Gas Pressure Field and Air
Flow Rate into the Building
Appendix B - Plots of Attenuation Factors as a Function
of Source Concentration, Depth and First-order
Biodegradation Rates for Basement Scenarios
Appendix C - Plots of Attenuation Factors as a Function of
Source Concentration, Depth and First-order
Biodegradation Rates for Slab-on-grade
Scenarios
Defines results from 3-dimensional numerical model simulations of vapor intrusion for petroleum hydrocarbons to assess the influence of aerobic biodegradation on the attenuation factor for a variety of source concentrations and depths for buildings with basements and slab-on-grade construction.
| DocumentType |
Standard
|
| Pages |
53
|
| ProductNote |
This product is unavailable in Cuba, Iran, North Korea, Syria
|
| PublisherName |
American Petroleum Institute
|
| Status |
Withdrawn
|
| EI INTRO.GUIDE. PETROLEUM HYDROCARBON : 1ED 2011 | INTRODUCTORY GUIDANCE ON PETROLEUM HYDROCARBON SOIL VAPOUR ASSESSMENT |
| API 4674 : 1998 | ASSESSING THE SIGNIFICANCE OF SUBSURFACE CONTAMINANT VAPOR MIGRATION TO ENCLOSED SPACES - SITE-SPECIFIC ALTERNATIVE TO GENERIC ESTIMATES |
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