hydrochemistry

Dynamics of humic substances in peat habitats of Prameniště Chomutovka nature reserve

Ing. Martin Vokoun, Ph.D., Ing. Vojtěch Moravec and Mgr. Pavel Eckhardt – 5/2025

This article focuses on evaluating the concentrations of humic substances (HS) in peatland waters in the Ore Mountains region, specifically in the area near the village of Hora Svatého Šebestiána in the Prameniště Chomutovky nature reserve. The aim was to assess the impact of restoration measures on the occurrence of HS in surface and subsurface waters in a post-peat-extraction environment. Monitoring was carried out from 2022 to 2024 on two experimental sites – one restored (site A) and one predominantly non-restored (site B) – and involved extensive monthly sampling, installation of flow weirs, shallow observation wells, and meteorological stations.

Ecotoxicological evaluation of river sediments in selected localities of the Odra river basin

Mgr. Antonín Vondrák, Mgr. Hana Sezimová, Ph.D. and Mgr. Martin Mucha, Ph.D. – 6/2020

The paper deals with the issue of pollution of river (bottom) sediments in the Odra river basin, which is located in one of the most anthropogenically polluted areas of the Czech Republic. The presented results are based on the evaluation of river sediments collected on eight selected profiles of water bodies belonging to the Odra river basin using a battery of five ecotoxicological tests including indicator organisms of different trophic levels.