Přístupnostní navigace
E-application
Search Search Close
Publication detail
DIVIŠ, P. KADLECOVÁ, M. OUDDANE B.
Original Title
Mercury Distribution in the Deûle River (Northern France) Measured by the Diffusive Gradients in Thin Films Technique and Conventional Methods
Type
journal article in Web of Science
Language
English
Original Abstract
The distribution of mercury in surface water and in sediment from Deûle River in Northern France was studied by application of conventional sampling methods and by diffusive gradients in thin films technique (DGT). Concentration of total dissolved mercury in surface water was 20.8 ± 0.8 ng l-1. The particulate mercury concentration was 6.2 ± 0.6 µg g-1. The particulate mercury was accumulated in sediment (9.9 ± 2.3 mg kg-1), and it was transformed by methylating bacteria to methylmercury, mainly in the first 2- cm layer of the sediment. Total dissolved concentration of mercury in sediment pore water obtained by application of centrifugation extraction was 17.6 ± 4.1 ng l-1, and it was comparable with total dissolved pore water mercury concentration measured by DGT probe containing Duolite GT-73 resin gel (18.2 ± 4.3 ng l-1), taking the sediment heterogeneity and different principles of the applied methods into account. By application of two DGT probes with different resin gels specific for mercury, it was found that approximately 30% of total dissolved mercury in sediment pore water was present in labile forms easy available for biota. The resolution of mercury DGT depth profiles was 0.5 cm, which allows, unlike conventional techniques, to study the connection of the geochemical cycle of mercury with geochemical cycles of iron and manganese.
Keywords
mercury, water, sediment, DGT technique, iron, manganese
Authors
DIVIŠ, P.; KADLECOVÁ, M.; OUDDANE B.
RIV year
2015
Released
1. 10. 2015
ISBN
0090-4341
Periodical
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
Year of study
69
Number
3
State
United States of America
Pages from
1
Pages to
10
Pages count
BibTex
@article{BUT117205, author="DIVIŠ, P. and KADLECOVÁ, M. and OUDDANE B.", title="Mercury Distribution in the Deûle River (Northern France) Measured by the Diffusive Gradients in Thin Films Technique and Conventional Methods", journal="ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY", year="2015", volume="69", number="3", pages="1--10", doi="10.1007/s00244-015-0231-y", issn="0090-4341" }