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Table 3 Surface radon exhalation from 5 different walls located in the Úrkút mine

From: Radiological survey on radon entry path in an underground mine and implementation of an optimized mitigation system

Location Radon exhalation (mBq m−2 s−1)
March Aug October February Min.–Max Mean
L-1 1.4 ± 0.2 1.1 ± 0.1 0.9 ± 0.1 1.5 ± 0.2 0.9–1.5 1.2
L-2 1.2 ± 0.2 0.9 ± 0.1 0.8 ± 0.1 1.3 ± 0.1 0.8–1.3 1.0
L-3 1.4 ± 0.2 1 ± 0.1 0.8 ± 0.1 1.4 ± 0.2 0.8–1.4 1.1
L-4 0.9 ± 0.1 0.8 ± 0.1 0.7 ± 0.1 1.1 ± 0.1 0.7–1.1 0.9
L-5 1.1 ± 0.1 1 ± 0.1 0.8 ± 0.1 1.3 ± 0.2 0.8–1.3 1.0