About: http://webisa.webdatacommons.org/81228764

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	Potentially toxic metals, such as lead, copper, tin, iron, zinc and manganese may be found in high concentrations from human wastes and also occur from deterioration of household pipes.
http://www.w3.org/ns/prov#wasQuotedFrom	uaf.edu