About: http://webisa.webdatacommons.org/35714576

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	But, chemicals, such as heavy metals, can be dangerous if they are used incorrectly or leak into the environment where they are not meant to be.
http://www.w3.org/ns/prov#wasQuotedFrom	glencoe.com