Behaviour of radon, radon progenies and particle levels during room depressurisation
作者： P Korhonen
DOI: 10.1016/S1352-2310(99)00438-0
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摘要: Abstract The aim of the study was to investigate effect room depressurisation (up −28 Pa) on indoor radon, radon progenies and particle concentrations in a wooden school building (A) double-family house (B). airborne particles, decreased with increased depressurisation. At same time, air exchange rates by factor 9.5 (house A) 13 B). calculated entry thus rose almost ratio, 6.3 12, respectively. equilibrium factors between were before after being 0.04 A 0.16 B. When pressure lowest, 0.7 0.9 B, progeny levels fell 0.6 both houses. (particles exceeding 0.01 μm) 10 1.2 dilution outdoor more effective A, which less tight.
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