Civil Engineering Reference
In-Depth Information
(a)
(b)
Fig. 4
Soil depressurization system (SDS): a schematics and b photos (Abdelouhab et al.
2010
)
Fig. 5 Radon concentration
versus air change rate (Akbari
et al.
2013
)
ACH
decreasing indoor radon content. Concerning the relative humidity, since radon
diffusion coefficient in water (1.2 9 10
-9
m
2
s) is much smaller than that in air
(1.2 9 10
-5
m
2
s) when relative humidity increases until 65 %, this means that
