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Temporal variations in phosphorus species [total phosphorus (Ptot), organic phosphorus (Porg), total inorganic phosphorus (Pmin), phosphorus bound to calcium (PCa), aluminium (PAl) and iron (PFe)] were studied in the surface layer of bottom sediments from the Gulf of Gda?sk. These changes were caused mainly by variability in Porg, PAl and PFe concentrations and were closely related to the growth cycle...
A sediment environment of the Gulf of Gdansk is reductive to the iron (III). The iron (II) is a dominant form of this element in the interstitial water, and a total reduction takes place in a sediment layer of up to 20 cm. A speciation of a dissolved iron as well as a total iron concentration is related to types of sediments in a measuring point. It could also be noted that a concentration of each...
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