About: http://webisa.webdatacommons.org/36355484

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	It also contains gases such as sulfur dioxide and hydrogen sulfide, and volatile compounds called polycyclic aromatic hydrocarbons, which at high exposures are considered a trigger for cancer, says Harber.
http://www.w3.org/ns/prov#wasQuotedFrom	cnn.com