「土壤環境與污染修復叢書」序 Chapter 1 Screening Models of Vapor Intrusion 1.1 Introduction 1.2 The general equation governing soil gas transport 1.2.1 Soil gas transport involving no biodegradation 1.2.2 The role of biodegradation in VI 1.2.3 Soil gas transport involving biodegradation 1.3 Contaminant soil gas entry into buildings 1.3.1 The equation governing escape of contaminant from the soil 1.3.2 Indoor air concentration calculation 1.4 The limits of VI screening tools References Chapter 2 Numerical Models of Vapor Intrusion 2.1 The soil gas transport involving no biodegradation 2.2 The soil gas transport involving biodegradation 2.3 Soil gas entry into the building 2.4 Calculation of indoor air concentration References Chapter 3 US EPA』s Vapor Intrusion Database and Generic Attenuation Factor 3.1 Introduction of US EPA』s vapor intrusion database 3.2 Examinations of the database based on modeling 3.3 Examinations of the database based on environmental factors 3.4 The generic attenuation factors and influences of background sources 3.5 The importance of appropriate source characterization References Chapter 4 US EPA』s PVI Database and Vertical Screening Distances 4.1 US EPA』s petroleum vapor intrusion database 4.2 Vertical screening distances 4.3 The capillary effect in cases of dissolve sources 4.3.1 Model validation 4.3.2 Examinations for cases with source in the dissolved phase 4.3.3 Numerical simulations for different soil textures 4.4 The role of soil texture in NAPL source cases 4.4.1 Numerical simulations 4.4.2 Analytical analysis 4.4.3 Refined vertical separation distances based on soil types References Chapter 5 Preferential Pathways and the Building Pressure Cycling Method 5.1 Introduction of preferential pathway and building pressure cycling 5.2 Numerical simulations of VI involving preferential pathway and BPC 5.2.1 Model validation 5.2.2 The influences of soil permeability and BPC on indoor quality 5.3 The analytical solutions for the BPC performance in the short term 5.4 Numerical simulations for the BPC performance in the short term 5.4.1 Model validation 5.4.2 Influences of environmental factors 5.4.3 Requirements for an effective BPC application 5.5 The application of building pressure cycling to generate aerobic barrier in petroleum vapor intrusion References Chapter 6 Vapor Intrusion Risk Assessments in Brownfield Redevelopment
6.1 The basic concept and process of vapor intrusion 6.2 The basic theory of the J-E model 6.2.1 Fluxes from the source to the soil near the building calculation 6.2.2 Calculation of the flux from the soil around the base of the building to the interior of the building 6.2.3 Derivation of indoor gas-phase concentration and attenuation factor 6.3 Differences between Volasoil model and J-E model 6.3.1 Source concentration calculation 6.3.2 Calculation of indoor air exposure concentration 6.4 Study of vapor intrusion risk assessment 6.5 Application of brownfield vapor intrusion risk assessment 6.6 The future of vapor intrusion risk assessment in brownfield redevelopment References
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