From a human health and environmental perspective, it is therefore important to reduce the indoor and outdoor levels of these volatile organic compounds. (sciencedaily.com)
Typically measured in Picocuries per liter (pCi / L) in the U.S. and Becquerels per cubic meter (Bq / m3) in Canada --(1 pCi / L = 37 Bq / m3)-- radon is quite common at low levels in most environments, with an average outdoor level of 0.27 pCi / L (10 Bq / m3) and indoor level of 1.21 pCi / L (45 Bq / m3). (rismedia.com)
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