Table 2.
Authors’ recommendations for values of correction factors k1m and k3m in underground facilities relative to optimal periods for conducting environmental measurements
| Type of object | Recommended exposure period | Recommended correction factors | Match compliance [%] |
|---|---|---|---|
| Cave | III | k1mb: 1.30 or k1mc:1.16 | 98% or 99% respectively |
| IV | k1mc: 0.88 | 95% | |
| V | k1mc: 0.74 | 98% | |
| IX | k1mc: 0.95 | 99% | |
| XI | k1mb: 1.30, k1mc: 1.30, k1ma:1.20 | 98%, 98%, 90% respectively | |
| XII | k1mb: 1.50 or k1mc:1.60 | 95% or 97% respectively | |
| Tourist route in mine | III | k1ma:1.56 | 90% |
| IV | k1mc: 0.96 or k1mb: 0.88 | 98% or 90% respectively | |
| IX | k1ma: 0.63 | 95% | |
| Mining company |
In colder period: XII |
k1mc or k1md 1.60 |
For mining area (range): 58–98% |
| Tourist route in abandoned uranium mine | Quarter no. 1 (January-March) | k3ma: 0.62 | 82% |
| Quarter no. 2 (April-June) | k3ma: 0.76 | 82% | |
| Quarter no. 3 (July–September) | k3ma: 2.14 | 88% | |
| Quarter no. 4 (October-December) | k3mb: 1.31 | 80% | |
| Inhalatorium in abandoned uranium mine | Quarter no. 1 (January-March) | k3mb:1.40, k3ma: 0.62 | 99%, 95% respectively |
| Quarter no. 2 (April–June) | k3ma: 0.76 | 90% | |
| Quarter no. 3 (July–September) | k3ma: 2.14 | 95% | |
| Quarter no. 4 (October–December) | k3mb: 1.31 | 72% | |
| Tourist route in military object | Quarter no. 1 (January–March) | k3ma: 0.62, k3mb: 1.40 | 89%, 82% respectively |
| Quarter no. 2 (April-June) | k3ma: 0.76 | 72% | |
| Quarter no. 3 (July–September) | k3ma: 2.14 | 72% | |
| Quarter no. 4 without recommendation | k3m | Too high difference of estimation |
Explanation: ZG—mining plant, k1m – monthly correction factor, k3m – quarterly correction factor, k3ma – quarterly correction factor for naturally ventilated facilities, k3mb – quarterly correction factor for facilities with mechanical ventilation systems, k3mc – averaged quarterly correction factor for all underground facilities, k1ma – monthly correction factor for naturally ventilated facilities well insulated from the atmosphere, k1mb – monthly correction factor for non-insulated facilities, k1mc – averaged monthly correction factor for underground facilities, k1md – monthly correction factor for facilities with mechanical ventilation systems