title: Extractable organic halogens (EOX) in sediments from selected Polish rivers and lakes--a measure of the quality of the inland water environment.
abstract: EOX in sediments from the two main Polish rivers (the Vistula and the Oder/Odra) as well as five lakes was assayed coulometrically and its values examined with respect to the location of the sample collection points. EOX values were found to increase near industrial areas and large urban agglomerations, although mean values--comparable for rivers and lakes--were similar to those recorded elsewhere. EOX tends to rise as TOC does so. On the other hand, the EOX:TOC ratio decreases sharply in the case of lakes, since TOC values there are roughly one order of magnitude higher than in rivers. Furthermore, the contents of selected polychlorinated biphenyls and organochlorine pesticides are directly related to EOX values. These relationships constitute a basis for the application of EOX as a parameter reflecting the level of organochlorine compounds in environmental quality evaluation.
authors.affiliation: Institute of Meteorology and Water Management, Maritime Branch, Department of Coastal Water Protection, 80-286 Gdańsk, Jaśkowa Dolina 29, Poland. elzbieta.niemirycz@imgw.pl
authors.forename: Elzbieta
authors.initials: E
authors.lastname: Niemirycz
authors.forename: Anna
authors.initials: A
authors.lastname: Kaczmarczyk
authors.forename: Jerzy
authors.initials: J
authors.lastname: Błazejowski
mesh_terms: D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D019015:Geologic Sediments / Q000737:chemistry; D006219:Halogens / Q000032:analysis*; D010575:Pesticides / Q000032:analysis*; D011044:Poland; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D011786:Quality Control; D012016:Reference Values; D045483:Rivers
chemical_list: D004785:Environmental Pollutants; D006219:Halogens; D010575:Pesticides; D011078:Polychlorinated Biphenyls