Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/j.sab.2006.09.015
Title (Primary) Determination of heavy metals in macrozoobenthos from the rivers Tisza and Szamos by total reflection X-ray fluorescence spectrometry
Author Woelfl, S.; Mages, M.; Óvári, M.; Geller, W.
Source Titel Spectrochimica Acta Part B: Atomic Spectroscopy
Year 2006
Department SEEFO; FLOEK
Volume 61
Issue 10-11
Page From 1153
Page To 1157
Language englisch
Abstract In 2000, accidents in the Romanian mining industry in key catchment areas led to heavy metal contamination of the Hungarian rivers Tisza and Szamos resulting in substantial heavy metal loads in several sediments of the upper river basins. This enhanced metal content might have been bioaccumulated in benthic organisms during the following years. Therefore, the aim of this study was to test, whether the zoobenthic fauna showed an enhanced metal content 3 years after the industrial accident. Macrozoobenthic insect larvae (chironomids) were sampled 100 m below and above the confluent site of the rivers Tisza and Szamos during summer 2003 and for comparison purpose also in the river Maros, a tributary of the Tisza river, during 2005. In order to determine their heavy metal content, single specimens were prepared and analysed by Total Reflection X-ray Fluorescence Spectrometry (TRXF) according to the modified dry method. Fe was much lower and Mn and Zn much higher concentrated in benthos from the more contaminated Szamos river compared to the Tisza and Maros rivers. In this sense, the benthic organisms reflected very well the enhanced metal concentrations in the contaminated rivers being suitable as bioindicators of metal contamination. However, the sediment bioaccumulation factor was low at all sampling sites indicating a low bioavailability of trace metals for benthic organisms.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=3135
Woelfl, S., Mages, M., Óvári, M., Geller, W. (2006):
Determination of heavy metals in macrozoobenthos from the rivers Tisza and Szamos by total reflection X-ray fluorescence spectrometry
Spectroc. Acta Pt. B-Atom. Spectr. 61 (10-11), 1153 - 1157 10.1016/j.sab.2006.09.015