About: http://webisa.webdatacommons.org/239769690

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	Other contaminants including cyanide, sulfides, phenols, surfactants and heavy metals, such as copper, zinc and chromium, also contribute to acute or chronic toxicity (Chambers et al. 1997).
http://www.w3.org/ns/prov#wasQuotedFrom	ec.gc.ca