Table 1: Summary of CsMPs dissolution. (c) and (f) are calculated as (f)=({d-b}/(ae))x100 and (c)=((b)/(a))x100, respectively.
|
Filtration type |
Dialysis membrane tube |
glass filter |
|
|
Sample condition |
(A)CsMPs on raw litter |
(B)CsMPs on non-milled charcoal litter |
(C)CsMPs on milled charcoal litter |
|
Temperature (℃) |
Ambient (20–25) |
Ambient (20–25) |
Ambient (20–25) |
|
(a)Radioactivity of used sample (Bq/g) |
37.7±0.7 |
90±1 |
90±1 |
|
(b)Radioactivity immediately after incubation (Bq/g) |
0.16±0.01 |
0.4±0.07 |
2.0±0.4 |
|
(c) Ratio of radioactivity immediately after dissolution (%) |
0.42±0.03 |
0.44±0.08 |
2.2±0.4 |
|
(d)Radioactivity after final incubation (Bq/g) |
0.24±0.01 |
1.0±0.2 |
3.7±0.9 |
|
(e)Incubation time (days) |
30 |
89 |
22 |
|
(f)Dissolution rate (%/day） |
0.0071±0.0009 |
0.0075±0.003 |
0.086±0.05 |