About: http://webisa.webdatacommons.org/405425006

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	The main sources of cadmium in the air are the burning of fossil fuels such as coal or oil and the incineration of municipal waste.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com