Change search
ReferencesLink to record
Permanent link

Direct link
Bioavailability of zinc in runoff water from roofing materials
KTH, Superseded Departments, Materials Science and Engineering.ORCID iD: 0000-0003-2206-0082
Show others and affiliations
2002 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 47, no 10, 1073-1080 p.Article in journal (Refereed) Published
Abstract [en]

Corrosion and runoff from zinc-coated materials and outdoor structures is an important source for the dispersion of zinc in the environment. Being part of a large inter-disciplinary research project, this study presents the bioavailability of zinc in runoff water immediately after release from the surface of 15 different commercially available zinc-based materials exposed to the urban environment of Stockholm, Sweden. Runoff water was analysed chemically and evaluated for its possible environmental impact, using both a biosensor test with the bacteria Alcaligenes eutrophus (Biomet(R)) and the conventional 72 h growth inhibition test with the green alga Raphidocelis subcapitata. Chemical speciation modelling revealed that most zinc (94.3-99.9%) was present as the free Zn ion, the most bioavailable speciation form. These findings were confirmed by the results of the biosensor test (Biomet(R)) which indicated that all zinc was indeed bioavailable. Analysis of the ecotoxicity data also suggested that the observed toxic effects were due to the presence of Zn2+ ions. Finally, regression analysis showed that, for this type of runoff samples, the rapid screening biosensor was capable of predicting (a) the total amount of zinc present in the runoff samples (R-2 of 0.93-0.98; p < 0.05) and (b) the observed 72 h-EbC(50)s (R-2 of 0.69-0.97; p < 0.05).

Place, publisher, year, edition, pages
2002. Vol. 47, no 10, 1073-1080 p.
Keyword [en]
zinc runoff, toxicity, biosensor, Alcaligenes eutrophus, Raphidocelis subcapitata, alga selenastrum-capricornutum, humic substances, daphnia-magna, toxicity, rainwater, metals, model, biosensors, sediments, chromium
URN: urn:nbn:se:kth:diva-21636ISI: 000176368400006OAI: diva2:340334
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Odnevall Wallinder, IngerLeygraf, Christofer
By organisation
Materials Science and Engineering
In the same journal

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

Total: 17 hits
ReferencesLink to record
Permanent link

Direct link