About: http://webisa.webdatacommons.org/228284499

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	In the past, discharges of oil contaminated ballast water from oil tankers taking ballast water into the oil cargo spaces was a serious problem.
http://www.w3.org/ns/prov#wasQuotedFrom	coastalwiki.org