Research Article

CO2 Leakage-Induced Contamination in Shallow Potable Aquifer and Associated Health Risk Assessment

Table 1

Input parameters for shallow groundwater aquifer materials. Relative permeability and capillary pressure follow equations developed by van Genuchten [40].

Aquifer characteristic

Permeability
 Horizontal10−13
 Vertical10−14
Porosity0.2
Density (kg/m3)2600
Tortuosity0.3
Compressibility10−8
Diffusivity (m2/s)10−9

Relative permeability

: irreducible water saturation0.20
: irreducible gas saturation0.05
: exponent0.457

Capillary pressure

: irreducible water saturation0.20
: exponent0.457
: strength coefficient19.59 kPa