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A novel XRF method to measure environmental release of copper and zinc from antifouling paints
Chalmers University of Technology, Gothenburg, Sweden.
Chalmers University of Technology, Gothenburg, Sweden; Stockholm University, Stockholm, Sweden.
RISE - Research Institutes of Sweden, Bioscience and Materials, Chemistry, Materials and Surfaces.
Stockholm University, Stockholm, Sweden.
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2017 (English)In: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 225, 490-496 p.Article in journal (Refereed) Published
Abstract [en]

The release of copper (Cu) and zinc (Zn) from vessels and leisure crafts coated with antifouling paints can pose a threat to water quality in semi-enclosed areas such as harbors and marinas as well as to coastal archipelagos. However, no reliable, practical and low-cost method exists to measure the direct release of metals from antifouling paints. Therefore, the paint industry and regulatory authorities are obliged to use release rate measurements derived from either mathematical models or from laboratory studies. To bridge this gap, we have developed a novel method using a handheld X-Ray Fluorescence spectrometer (XRF) to determine the cumulative release of Cu and Zn from antifouling paints. The results showed a strong linear relationship between XRF Kα net intensities and metal concentrations, as determined by ICP-MS. The release of Cu and Zn were determined for coated panels exposed in harbors located in the Baltic Sea and in Kattegat. The field study showed salinity to have a strong impact on the release of Cu, i.e. the release increased with salinity. Contrary, the effect of salinity on Zn was not as evident. As exemplified in this work, the XRF method also makes it possible to identify the governing parameters to the release of Cu and Zn, e.g. salinity and type of paint formulation. Thus, the XRF method can be used to measure environmentally relevant releases of metallic compounds to design more efficient and optimized antifouling coatings.

Place, publisher, year, edition, pages
Elsevier Ltd , 2017. Vol. 225, 490-496 p.
Keyword [en]
Antifouling paint; Paint; Water quality; X ray spectrometers; Zinc, Antifouling coating; Environmental release; Governing parameters; Laboratory studies; Linear relationships; Metal concentrations; Regulatory authorities; X-ray fluorescence spectrometer, Copper
National Category
Medical Engineering
Identifiers
URN: urn:nbn:se:ri:diva-30045DOI: 10.1016/j.envpol.2017.03.014Scopus ID: 2-s2.0-85015884973OAI: oai:DiVA.org:ri-30045DiVA: diva2:1119518
Available from: 2017-07-04 Created: 2017-07-04 Last updated: 2017-07-04Bibliographically approved

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