About: http://webisa.webdatacommons.org/226075853

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The amount of radon present in a home is highly variable, and depends on a number of factors, including soil type, geology, foundation type, HVAC system, construction tightness, and others.
http://www.w3.org/ns/prov#wasQuotedFrom	waterproofmag.com