About: http://webisa.webdatacommons.org/48879052

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	Efforts are ongoing at NCCOS laboratories to seek out suitable substitutes for toxics and heavy metals such as lead, cadmium, and mercury.
http://www.w3.org/ns/prov#wasQuotedFrom	noaa.gov