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Monitoring the freely dissolved concentrations of polycyclic aromatic hydrocarbons (PAH) and alkylphenols (AP) around a Norwegian oil platform by holistic passive sampling.

Authors :
Harman, Christopher
Thomas, Kevin V.
Tollefsen, Knut Erik
Meier, Sonnich
Bøyum, Olav
Grung, Merete
Source :
Marine Pollution Bulletin; Nov2009, Vol. 58 Issue 11, p1671-1679, 9p
Publication Year :
2009

Abstract

Abstract: In order to assess the environmental impact of aquatic discharges from the offshore oil industry, polar organic chemical integrative samplers (POCIS) and semipermeable membrane devices (SPMDs) were deployed around an oil platform and at reference locations in the North Sea. Exposure to polycyclic aromatic hydrocarbons (PAH) and alkylated phenols (AP) was determined from passive sampler accumulations using an empirical uptake model, the dissipation of performance reference compounds and adjusted laboratory derived sampling rates. Exposure was relatively similar within 1–2km of the discharge point, with levels dominated by short chained C1–C3 AP isomers (19–51ngL<superscript>−1</superscript>) and alkylated naphthalenes, phenanthrenes and dibenzothiophenes (NPD, 29–45ngL<superscript>−1</superscript>). Exposure stations showed significant differences to reference sites for NPD, but not always for more hydrophobic PAH. These concentrations are several orders of magnitude lower than those reported to give both acute and sub-lethal effects, although their long term consequences are unknown. [Copyright &y& Elsevier]

Details

Language :
English
ISSN :
0025326X
Volume :
58
Issue :
11
Database :
Supplemental Index
Journal :
Marine Pollution Bulletin
Publication Type :
Academic Journal
Accession number :
44832025
Full Text :
https://doi.org/10.1016/j.marpolbul.2009.06.022