E3S Web Conf.
Volume 44, 201810th Conference on Interdisciplinary Problems in Environmental Protection and Engineering EKO-DOK 2018
|Number of page(s)||8|
|Published online||03 July 2018|
Lifting of biogenic compounds by a riverbed from a municipal drainage basin on a day scale
Laboratory of Geology, University of ŁÓdŹ, 90-139 ŁÓdŹ, ul. Narutowicza 88, Poland
2 Third year of full-time studies in the field of Geomonitoring, the Faculty of Geographical Sciences, University of ŁÓdŹ, 90-139 ŁÓdŹ, ul. Narutowicza 88, Poland
3 Third year of doctoral studies, the Faculty of Geographical Sciences, University of ŁÓdŹ, 90-139 ŁÓdŹ, ul. Narutowicza 88, Poland
* Corresponding author: email@example.com
Urban river is the object of very dynamic hydrochemical changes. It was decided to trace the variability of physicochemical elements within 24-hour. One of the rivers in ŁÓdŹ – Olechówka – was selected for research, where, having knowledge from previous research, two measurement-control points were established: first located in the middle course of the river (on its quasi-natural fragment), second at its mouth to the recipient. Between these points, the Olechówka River catchment gains significantly on urbanization. A measurement series during 24-hour was carried out at each of the points, during which in situ measurements Q, T, pH, SEC and O2 were taken every 1 hour and water samples were taken for the analytical determinations NO3-, PO43-, NH4+, TN, TP and Susp. With relatively stable hydrological conditions, a twenty-four hour cycle of changes in nutrient concentrations was observed, whose maxima occur during the night hours.
© The Authors, published by EDP Sciences, 2018
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