Historical Changes in Levels of Organic Pollutants in Sediment Cores from Brno Reservoir, Czech Republic

Investor logo

Warning

This publication doesn't include Faculty of Arts. It includes Faculty of Science. Official publication website can be found on muni.cz.
Authors

FRANCŮ Eva SCHWARZBAUER Jan LÁNA Richard NÝVLT Daniel NEHYBA Slavomír

Year of publication 2010
Type Article in Periodical
Magazine / Source Water, Air and Soil Polution
MU Faculty or unit

Faculty of Science

Citation
Field Geology and mineralogy
Keywords PCBs - PAHs - Organochlorine pesticides - Sediment profile
Description Results of a comprehensive study are presented on the spatial and depth-related distribution of persistent organic pollutants (POPs) in sediments of the Brno reservoir, Czech Republic. Based on sedimentological observations, three major historic phases were identified related to the evolution of the depositional environment, flow rate, and material input. Data on organic carbon, polycyclic aromatic hydrocarbons, polychlorinated biphenyls, and organochlorine pesticides showed specific distribution patterns in a 3-m-deep core. The analysis of the depth trends of the geochemical data combined with sedimentology made it possible to distinguish between remote sources of the pollutants, early weathering alterations of POPs, transport by river associated with organic matter as sorbent on one hand, and local sources weakly related to lithology on the other hand. The integrated sedimentological and environmental geochemical archive provided an improved dynamic view of the pollution in historical terms.
Related projects:

You are running an old browser version. We recommend updating your browser to its latest version.