Geoscience Reference
In-Depth Information
Fig. 11.1 Schematic representation of NAPL movement from land surface to the water table
region. a LNAPL movement and b DNAPL movement (Abriola and Pinder
1985
). Reproduced
by permission of American Geophysical Union. Abriola and Pinder (
1985
), Copyright 1985,
American Geophysical Union
lateral) migration are governed by (1) the properties (e.g., surface wetting) of the
NAPL itself, (2) the NAPL density and viscosity relative to the resident pore water,
(3) the actual moisture content, (4) the properties (physical, such as pore size, and
chemical, such as wettability) of the porous matrix, and (5) the inlet/infiltration
condition and NAPL volume (Schwille
1988
). Volatilization of components in the
NAPL also affects the rate and pattern of migration, as properties of surface wetting,
density, and viscosity change over time. Figures
11.2
and
11.3
show migration
