Indoor radon levels in Greek schools

Indoor radon measurements in residential dwellings in Qom, Iran

“…The *indings indicate that the average radon concentration is slightly lower for well-ventilated dwellings as compared to poorly ventilated dwellings. The results of this study are consistent with those of many other investigations that have been done on this topic (34,(45)(46)(47) . Because indoor radon concentration levels depend on indoor ventilation conditions and in well-ventilated dwellings the radon can easily move out and does not accumulate inside, the indoor radon level goes down in well-ventilated dwellings in comparison to poorly-ventilated ones (46) .…”

Indoor radon levels in schools of South-East Italy

“…Since the number of sampling points on lower floors (ground floor and basement) was much higher compared with those on the first floor, radon values relating to each building can be considered as being rather overestimated. Nevertheless, it can be pointed out that e as in other radon measurement campaigns in schools (Clouvas et al, 2011;Rahman et al, 2009;Synnot et al, 2006) e the choice of monitoring principally rooms located on the ground floor arose from the fact that, except for secondary schools, a large number of schools are ground-floor-only structures.…”

Radon and radioactivity at a town overlying Uranium ores in northern Greece

“…It hosts late Cambrian metamorphic rocks, Meta-, or Middle-Hercynian age granite bodies included inside them and an Oligocene age volcanic cover of rhyolites, quartz diorites, aggregated tuffs and tuffites gradually changing in sediments of the underlying volcano sedimentary series (Pergamalis et al, 1998(Pergamalis et al, , 2010Tsokas et al, 1996). Further, as mentioned in Section 1 above, it is located in the region where the highest indoor radon concentrations in Greece were measured (Clouvas et al, 2011).…”

“…While measurements have been performed in spas (Danali et al, 1986), caves (Papachristodoulou et al, 2004), active faults (Papastefanou et al, 2001) and mines (Georgiou et al, 1988), literature on indoor levels in dwellings is not very extensive (Clouvas et al, 2007(Clouvas et al, , 2011Geranios et al, 2001;Ioannides et al, 2000;Nikolopoulos et al, 2002). Measurements of Rn emanation have been performed in Greek cement constituents (Maraziotis, 1987) and building materials (Papastefanou et al, 1984;Siotis and Wrixon, 1984).…”