About: http://webisa.webdatacommons.org/187400341

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	Contamination may occur through environmental pollution, as in the case of toxic metals, Polychlorinated biphenyls (PCBs) and dioxins, or through the intentional use of chemicals, such as pesticides, animal drugs and other agrochemicals.
http://www.w3.org/ns/prov#wasQuotedFrom	who.int