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Determination of inorganic speciation forms of arsenic, antimony and selenium in water from a grate ashes dumping ground as an element of hydrogeochemical monitoring of pollution spread

100%

Siepak M., Niedzielski P., Bierla K.

Polish Journal of Environmental Studies

2004

tom 13

nr 6

This paper presents results of the determination of the total concentration of arsenic, antimony and selenium and their inorganic speciation forms in water samples from grate ashes dumping grounds. Determined concentrations of elements were up to 128.8 ng/mL for arsenic, 153.7 ng/mL for antimony and 52.9 ng/mL for selenium, at the detection limits of 0.16 ng/mL for As, 0.18 ng/mL for Sb and 0.15 ng/mL for Se. Water from some study sites was characterized by very high concentrations of determined elements, which were used to follow their migration. Leakage of dangerous micro-pollutants to ground water was stated. Based on results of speciation analysis the vertical migration of pollutants through unsaturated zone was found.

Fractionation of some heavy metals in bottom sediments from the Middle Odra River [Germany-Poland]

88%

Glosinska G., Sobczynski T., Boszke L., Bierla K., Siepak J.

Polish Journal of Environmental Studies

2005

tom 14

nr 3

Fractionation of Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn has been performed in bottom sediment samples collected along a 75 km section of the middle Odra River by a modified method of 5-step sequential extraction according to Tessier. The results have shown the presence of Cu, Ni, Zn and Mn already in exchange fraction (I); the mean percent content of metals in mobile phases (exchange and carbonate) reached 35% (Cu), while the maximum values reached 59% (Ni). From among the metals studied, Zn, Mn, Fe, Cr and Ni were dominant in the species bound to hydrated iron and manganese oxides, so the metals contained in the bottom sediments were not permanently immobilized. Good correlation was found between the concentrations of Zn, Mn and Cd in the mobile phases (I+II) and their total concentrations. Similarly, the concentrations of all metals determined in the reducible fraction and in the fraction bound to organic matter (except for Cd and Cr) were well correlated to their total content.

Ograniczanie wyników

2 Polish Journal of Environmental Studies

2 Bierla K.

1 Boszke L.

1 Glosinska G.

1 Niedzielski P.

1 Siepak J.

1 Siepak M.

1 Sobczynski T.

1 2005

1 2004

Wyniki wyszukiwania

Determination of inorganic speciation forms of arsenic, antimony and selenium in water from a grate ashes dumping ground as an element of hydrogeochemical monitoring of pollution spread

Fractionation of some heavy metals in bottom sediments from the Middle Odra River [Germany-Poland]