Table 1 Pumping parameters for periodic injections of soil gas into the chamber (parameters selected randomly).
Case No. | Soil gas pumping flow rate, f0 (L min−1) | Period of the pumping cycle, T (min) | Concentration needs to be maintained in the chamber, C0 (kBq m−3) | Duration of pumping, T1 (min) | Non-pumping duration, T2 (min) |
|---|---|---|---|---|---|
Case 1 | 60 | 60 | 9.0 | 1 | 59 |
Case 2 | 60 | 90 | 8.3 | 1 | 89 |
Case 3 | 50 | 60 | 8.1 | 1 | 59 |
