<http://webisa.webdatacommons.org/prov/31201484>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/217045653> .
<http://webisa.webdatacommons.org/217045653>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<sandiego.gov> .
<http://webisa.webdatacommons.org/prov/317746596>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/217045653> .
<http://webisa.webdatacommons.org/217045653>	<http://www.w3.org/ns/prov#value>	"Some of the frequently encountered priority pollutants are arsenic, benzenes, chloroform, cyanide, phenols, pesticides, and heavy metals such as cadmium, chromium, copper, lead, mercury, nickel, silver and zinc." .
<http://webisa.webdatacommons.org/217045653>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .