Change search
ReferencesLink to record
Permanent link

Direct link
Tributyltin Sorption to Marine Sedimentary Black Carbon and to Amended Activated Carbon
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
2009 (English)In: Environmental Toxicology and Chemistry, ISSN 0730-7268, E-ISSN 1552-8618, Vol. 28, no 3, 503-508 p.Article in journal (Refereed) Published
Abstract [en]

Under marine conditions, tributyltin (TBT) is speciated mainly as an uncharged hydroxyl complex (TBTOH) that is expected to have a similar fate to hydrophobic organic contaminants. Earlier studies indicated that for the later compounds, sorption to black carbon (BC) can be more than two orders of magnitude stronger than sorption to organic carbon, notably at low and environmentally relevant concentrations. The aim of the present study was to investigate the sorption strength of spiked TBT to a sediment and its BC isolate. It was observed that carbon-normalized sorption coefficients were in the same range for the sediment total organic carbon (TOC) and for its BC (log K-TOC 5.05 L/kg(TOC) and log K BC 5.09 L/kg(BC), respectively). This indicates that TBT does not sorb as strongly to BC as other hydrophobic organic contaminants. Activated carbon (AC), a strong man-made sorbent, has the potential to be used for in situ remediation of contaminated sediments and soils, in particular for polycyclic aromatic hydrocarbons and polychlorinated biphenyls. In the present study, both granular and powdered AC were found to strongly sorb TBT under marine conditions, with a log sorption coefficient of 6.8 L/kg(carbon). Tributyl- and dibutyltin concentrations in the pore water of a natively contaminated sediment were reduced by more than 70% on addition of 2% of powdered AC, whereas granular AC did not show a similar reduction. The results indicate that powdered AC might be a feasible remediation agent for sediments contaminated by organotins.

Place, publisher, year, edition, pages
2009. Vol. 28, no 3, 503-508 p.
Keyword [en]
Tributyltin, Sorption, Black carbon, Sediment, Activated carbon
National Category
Natural Sciences Pharmacology and Toxicology
URN: urn:nbn:se:su:diva-60377DOI: 10.1897/08-236.1ISI: 000263203700008OAI: diva2:435359
authorCount :3Available from: 2011-08-18 Created: 2011-08-16 Last updated: 2011-08-18Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Cornelissen, Gerard
By organisation
Department of Applied Environmental Science (ITM)
In the same journal
Environmental Toxicology and Chemistry
Natural SciencesPharmacology and Toxicology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 15 hits
ReferencesLink to record
Permanent link

Direct link