Short Communication MEASUREMENT OF NAPHTHENIC ACIDS IN THE RECEIVING WATERS AROUND AN OFFSHORE OIL PLATFORM BY PASSIVE SAMPLING

yNorwegian Institute for Water Research, Oslo, NorwayzStatoil, Stavanger, Norway(Submitted 18 February 2014; Returned for Revision 8 April 2014; Accepted 28 May 2014)Abstract: Polarorganicchemicalintegrative samplers(POCIS)were deployedinthevicinityofanoffshoreoilinstallation andanalyzedfor naphthenic acids (NAs). The POCIS accumulated a range of mono- to tetracyclic NAs, with different degrees of alkylation, withmonocyclicacidsbeingthemostabundant.Currently,POCISorsimilarpolarsamplersmaybetheonlywaytomeasureexposuretoNAsfromoffshoredischargesinsitu.Inaddition,theymaybeavaluabletoolformonitoringsimilarorganicacidsingeneral.EnvironToxicolChem 2014;33:1946–1949. # 2014 SETACKeywords: North Sea Polar organic chemical integrative samplers Produced water Marine pollutionINTRODUCTION