About: http://webisa.webdatacommons.org/338174889

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	These can include heavy metals such as lead, arsenic, or cadmium, condensed acid aerosols like sulfur trioxide (SO3), or condensed volatile organic compounds (VOC???s).
http://www.w3.org/ns/prov#wasQuotedFrom	envitechinc.com