About: http://webisa.webdatacommons.org/30792748

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	For a variety of reasons, such support environments may contain pollutants, bacteria, algae, harmful organisms and other harmful contaminants such as silt and organic particulate matter, among others.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com