About: http://webisa.webdatacommons.org/372591656

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	No other contaminants, such as polychlorinated biphenyls and mercury, were present in any sample at concentrations known to affect avian reproduction.
http://www.w3.org/ns/prov#wasQuotedFrom	usgs.gov