Figure 7 | Scientific Reports

Figure 7

From: Radon concentration in conventional and new energy efficient multi-storey apartment houses: results of survey in four Russian cities

Figure 7

Geometric mean radon concentration in subgroups of energy efficient buildings depending on the year of construction: Ekaterinburg—earlier (number of measured flats N = 15) and later 2010 (N = 12); Saint Petersburg—earlier (N = 27) and later 2015 (N = 35). Low-rise energy buildings in Saint Petersburg—all the years of construction (N = 8). Whiskers—95% CI of geometric mean.

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