About: http://webisa.webdatacommons.org/152840131

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	In essence, the doses from natural radionuclides are not worthy to control since the concentrations are mostly low and the resources required to control exposure would be out of proportion to the benefits achieved for health.
http://www.w3.org/ns/prov#wasQuotedFrom	worldwidescience.org