Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7-9
pubmed:dateCreated
2011-3-10
pubmed:abstractText
The Norwegian water column monitoring program investigates the biological effects of offshore oil and gas activities in Norwegian waters. In three separate surveys in 2006, 2008, and 2009, bioaccumulation and biomarker responses were measured in mussels (Mytilus edulis) and Atlantic cod (Gadus morhua) held in cages at known distances from the produced water (PW) discharge at the Ekofisk oil field. Identical monitoring studies performed in all three years have allowed the biological effects and bioaccumulation data to be compared, and in addition, enabled the potential environmental benefits of a PW treatment system (CTour), implemented in 2008, to be evaluated. The results of the 2009 survey showed that caged animals were exposed to low levels of PW components, with highest tissue concentrations in mussels located closest to the PW discharge. Mussels located approximately 1-2 km away demonstrated only background concentrations of target compounds. Concentrations of polycyclic aromatic hydrocarbons (PAH) and alkyl phenol (AP) metabolites in the bile of caged cod were elevated at stations 200-250 m from the discharge. There was also a signal of exposure relative to discharge for the biomarkers CYP1A in fish and micronuclei in mussels. All other fish and mussel biomarkers showed no significant exposure effects in 2009. The mussel bioaccumulation data in 2009 indicated a lower exposure to the PW effluent than seen previously in 2008 and 2006, resulting in an associated general improvement in the health of the caged mussels. This was due to the reduction in overall discharge of PW components (measured as oil in water) into the area in 2009 compared to previous years as a result of the improved PW treatment system.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1528-7394
pubmed:author
pubmed:issnType
Print
pubmed:volume
74
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
582-604
pubmed:meshHeading
pubmed-meshheading:21391100-Animals, pubmed-meshheading:21391100-Biological Markers, pubmed-meshheading:21391100-Body Burden, pubmed-meshheading:21391100-Cytochrome P-450 CYP1A1, pubmed-meshheading:21391100-Egg Proteins, pubmed-meshheading:21391100-Environmental Monitoring, pubmed-meshheading:21391100-Extraction and Processing Industry, pubmed-meshheading:21391100-Female, pubmed-meshheading:21391100-Gadus morhua, pubmed-meshheading:21391100-Glutathione Transferase, pubmed-meshheading:21391100-Liver, pubmed-meshheading:21391100-Male, pubmed-meshheading:21391100-Mytilus edulis, pubmed-meshheading:21391100-Norway, pubmed-meshheading:21391100-Petroleum, pubmed-meshheading:21391100-Polycyclic Hydrocarbons, Aromatic, pubmed-meshheading:21391100-Seawater, pubmed-meshheading:21391100-Vitellogenins, pubmed-meshheading:21391100-Water Pollutants, Chemical
pubmed:year
2011
pubmed:articleTitle
Water column monitoring of the biological effects of produced water from the Ekofisk offshore oil installation from 2006 to 2009.
pubmed:affiliation
Norwegian Institute for Water Research (NIVA), Oslo, Norway. sbr@niva.no
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't