About: http://webisa.webdatacommons.org/298883752

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	Selenium is an essential nutrient to the mammalian body at low levels, but is toxic at high concentrations.
http://www.w3.org/ns/prov#wasQuotedFrom	azlibrary.gov