Table B.2
The mass balance for pendimethalin (low concentration) sorption to pond sediment. The recoveries were calculated
relative to theoretical total activity and relative to the activity of controls
Time
Water
Sediment
Test glass
Centrifuge
tubes
Total
Theoretical total
Control
hours
dpm
dpm
dpm
dpm
dpm
dpm
dpm
Balance
theoretical
Balance
control
3
1919
67283
42
101
69345
94179
73531
76%
94%
3
1856
66612
64
47
68579
94179
73531
75%
93%
24
1521
64649
56
25
66251
94179
77240
72%
86%
24
1521
41031
79
35
42666
94179
77240
47%
55%
168
1408
68897
65
29
70399
94179
73787
77%
95%
168
1440
70067
27
12
71546
94179
73787
78%
97%
480
1481
64748
134
59
66422
94179
73017
73%
91%
480
1456
69010
69
31
70566
94179
73017
77%
97%
Average
72%
89%
|