About: http://webisa.webdatacommons.org/140692758

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	A ceiling limit is one that may not be exceeded for any period of time, and is applied to irritants and other materials that have immediate effects.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org