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Research Articles
Polycyclic Aromatic Compounds and Microtox. Acute Toxicity in Contaminated Sediments in Sweden
Mathias Ricking; Erik Beckman; Anders Svenson
Corresponding author:: Mathias Ricking, Free University of Berlin, Department of Geoscience, Malteserstrasse 74-100, House B, D-12249 Berlin, Germany; e-mail ricking@zedat.fu-berlin.de
DOI: http://dx.doi.org/10.1065/jss2002.06.048 ---
Limnic and brackish aquatic sediments from contaminated
locations in Sweden were analysed for polycyclic aromatic
compounds (PACs) and tested for acute aquatic toxicity. The
organic compounds were analysed in solvent-extractable and
alkaline-treated fractions to complete the analysis of a set of
priority pollutants according to the Swedish EPA. Additionally,
the acute toxicity was measured by the solid phase Microtox
test. The measured effects were correlated with sedimentological
and chemical parameters. Analysis revealed no indication of a
contribution of PACs to the acute sediment toxicity in highly
contaminated sediments, with concentrations in the range of
11.3 – 307 microgram SPAC-37/39 per gram dry matter. Despite a high ranking of
3 to 5 within the Swedish EPA list for coastal sediments, the
acute toxicity results indicate a very low bioavailability of the
analysed PACs from the creosote and combustion-contaminated
sediments. A correlation of acute toxicity to elemental sulfur
was indicated. | | Keywords: acute toxicity; aquatic surface sediments; elemental sulfur; Microtox solid phase test; polycyclic aromatic compounds (PACs) |
2 JSS (3) 129-136 (2002)
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