<http://webisa.webdatacommons.org/413255954>	<http://www.w3.org/ns/prov#value>	"metals such as Zn, Pb and Cd." .
<http://webisa.webdatacommons.org/413255954>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<academicdirect.org> .
<http://webisa.webdatacommons.org/prov/463951458>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/413255954> .
<http://webisa.webdatacommons.org/413255954>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .