Organic matter and surface properties of solid particles in the estuarine mixing zone |
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| Authors: | Jasenka Jedna
ak-Bi&#x;&#x;an Mladen Jura
i&#x; |
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| Institution: | Jasenka Jedna?ak-Bi??an,Mladen Jura?i? |
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| Abstract: | Two physicochemical parameters: specific surface area (SSA) and heat-of-wetting (ΔwH) were measured in order to characterize the surface of sediments from river and marine environments. The data for the sediment samples of the Krka River Estuary were compared with polluted river and shelf marine sediment samples. It was found that organic free samples from the polluted river sediments show two to three times larger SSA compared to native samples. At the same time, ΔwH was two to three times higher for native samples. The inverse of this trend was found for marine sediment samples. In the Krka River Estuary a narrow transition zone is evident, where such an inversion occurs. This inversion is attributed to significant compositional changes of organic matter within the estuary. |
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