Identifying Soil and Transport Properties Using a Model
29
Table 1. Field-estimated reactive tracer properties
Koc [ml gol]
Optimal
Confidence Laboratoryinterval
-measured
BRM
16
8-30
70 (1)'
ATR
28
10-60
40 (3)
TBA
56
30-80
200 (1)'
'Different from field value at 1 % confidence.
(1) Tauber-Y asur et al. (1998)
(2) Flury (1996)
(3) Shapir and Mandelbaum (1997)
Ie [datI]
Optimal Confidence
Laboratoryinterval
-measured
<0.010
0.002 (2)
0.023
0.01 -0.055 0.023 (3)
0.021
0.015-0.060 0.014 (2)
ar-------------~
Fig. 5a,b. Interval of confidence (solid line) of the partition Kd (a) and decay Ie (b)
coefficients for TBA, BRM, and A TR. 0 laboratory measurements, x best fit estimate
Bromacil transport is sensitive to changes in Kd but not A. The Kd confidence
interval is 0.08 < Kd < 0.3 corresponding to 8 < Koc < 30. This is slightly less than