Abstract
Sediment samples and soils along the coast line of the Adriatic Sea were sampled along a transect near the coast line at Zadar/Croatia, ranging from north-western suburbs via the historical centre and the industrial area to south-east suburbs. The sediments were dominated by carbonates and clay minerals, and contaminations with Cd–Cu–Pb–Zn–TOC (total organic carbon) at the historical centre and the industrial site were detected, as well as P and Mo input at the mouth of a small creek, probably from agriculture. No trends between the composition of surface and subsurface sea sediments were seen. At the historic harbour site, total element concentrations versus grain size showed a minimum in the fine silt fraction for most of the elements analysed. The soil samples behind the shoreline were not carbonaceous, but dominated by Fe–Al– oxides, some contained high levels of Be–Cd–Cu–Sn–Zn. Surprisingly, high TOC values within the soils might be assigned to human impacts, not to humus. Contrary to data from street dust samples from Seoul city/Korea, which were measured within our laboratory at the same time, Pt–Ir–Au were at ambient levels due to the limited use of catalysts in cars in the Zadar area at the time of sampling.
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Acknowledgments
Partly financial support by the EU-project APOPSBAL is acknowledged. Many thanks to Ms. Edith Haslinger for the determination of the grain-size distribution as well as the mineralogical analyses. The help of Ms. Hea Youn Lee for the digestion of the samples and preparation for measurement is deeply acknowledged.
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Sager, M., Kralik, M. Environmental impact of historical harbour city Zadar (Croatia) on the composition of marine sediments and soils. Environ Geochem Health 34 (Suppl 1), 83–93 (2012). https://doi.org/10.1007/s10653-011-9414-2
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DOI: https://doi.org/10.1007/s10653-011-9414-2