Profile distribution of As(III) and As(V) species in soil and groundwater in Bozanta area

Frentiu, T., Vlad, S. -N., Ponta, M., Baciu, C., Kasler, I. and Cordos, E. Profile distribution of As(III) and As(V) species in soil and groundwater in Bozanta area Chemical Papers, Vol.61, No. 3, 2007, 186-193

Document type: Článok z časopisu / Journal Article
Collection: Chemical papers  

Author(s) Frentiu, T.
Vlad, S. -N.
Ponta, M.
Baciu, C.
Kasler, I.
Cordos, E.
Title Profile distribution of As(III) and As(V) species in soil and groundwater in Bozanta area
Journal name Chemical Papers
Publication date 2007
Year available 2007
Volume number 61
Issue number 3
ISSN 0366-6352
Start page 186
End page 193
Place of publication Poland
Publisher Versita
Collection year 2007
Language english
Subject 290000 Engineering and Technology
291100 Environmental Engineering
Abstract/Summary The profile distribution of arsenic(III) and arsenic(V) species in soil and groundwater was investigated in the samples collected in 2005 from a hand-drilled well, in the Bozanta area, Baia Mare region, Romania. The total content of arsenic in the soil was in the range of 525–672 mg kg−1 exceeding 21–27 times the action trigger level for sensitive soil. 0.9–11.3 % of the total content was soluble in water, 83.0–92.6 % in 10 mol dm−3 HCl and 2.6–13.3 % was the residual fraction. Arsenic(V) was the dominant arsenic species in the soil in the range of 405–580 mg kg−1. The distribution and mobility of arsenic species was governed by soil pH and contents of Al, Fe, and Mn. The mobility of arsenic(V) decreased with depth, while that of arsenic(III) was high at the surface and in the proximity of groundwater. The total concentration of arsenic in groundwater was (43.40 ± 1.70) µg dm−3, which exceeded the maximum contaminant level of 10 µg dm−3.
 
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