About: http://webisa.webdatacommons.org/204507310

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	The highest level of total chromium measured at the Elizabeth Mine site (0.56 ??g/m3) is slightly above this range.Chromium is released into the atmosphere mainly by man-made sources such as the combustion of natural gas, oil, and coal.
http://www.w3.org/ns/prov#wasQuotedFrom	cdc.gov