Click on image to view larger version.
Fig. 4. Examples of measured concentration versus distance profiles for naphthalene diffusion at either high initial concentration (Ch, open symbols) or low initial concentration (Cl, closed symbols) at selected contact times (equilibrium time + incubation time) in (a) Hiroshima (
0.13 m3 m-3, t = 722 h), (b) Yolo ( 0.18 m3 m-3, t = 504 h) (c) Lerbjerg 5 ( 0.24 m3 m-3, t = 386 h), (d) Lundgaard ( 0.07 m3 m-3, t = 143 h) and (e) Forbes ( 0.21 m3 m-3, t = 2448 h). The lines are model fit (Eq. [5]) to measured data to obtain the Deff value.
