1. Surface exhalation rate Mass exhalation rate ( Em )Bq.kg-1.h-1
Table 1. Radon Concentration, Surface exhalation rate, Mass exhalation rate for the some Building Materials
Sample
Country of Origin
Radon concentration
(Bq/m3)
Surface exhalation rate
( Ex ) Bq.m-2.h-1
Mass exhalation rate ( Em )Bq.kg-1.h-1
White Cement
Fallujah
156.74
0.94
0.26
Plaster
165.5
1.0
0.28
Cement
Sulaymaniyah
205.05
1.24
0.35
Bricks
166.55
1.01
Block
251.58
1.52
0.43
Stone building
121.95
0.72
0.21
Kashi
Ceramics
174.12
1.05
0.3
Porcelain
Turkish
270.04
1.63
0.46
Black marble
209.04
1.26
0.36
Green Ceramics
217.77
1.31
0.37
Red granite
383.3
2.3
0.65
White marble
200.27
1.21
0.34
123.1
0.74
139.36
0.84
0.24
Laith A. Najam et al. Radon Concentration in Some Building Materials in Using CR-39 Track Detector. International Journal of Physics, 2013, Vol. 1, No. 3, doi: /ijp-1-3-3
© The Author(s) Published by Science and Education Publishing.