PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • AIHA ERPG-2 (maximum airborne concentration below which it is believed that nearly all persons could be exposed for up to 1hour without experiencing or developing irreversible or other serious health effects or symptoms that could impair their abilities to take protective action) = 50ppm.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cdc.gov