About: http://webisa.webdatacommons.org/4959587

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 condition or physical situation with a potential for an undesirable consequence, such as harm to life or limb. (RAIS 2004, SRA 2004)
http://www.w3.org/ns/prov#wasQuotedFrom	epa.gov