About: http://webisa.webdatacommons.org/157664131

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	Lack of proper ventilation may cause accumulation of particulates or volatile organic compounds (VOCs), and other gases such as formaldehyde, carbon monoxide, carbon dioxide or sulfur dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom	apwa.net