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Real-time monitoring on Evrotas River (Laconia, Greece): dissolved oxygen as a critical parameter for environmental status classification and warning by I. Mariolakos; I. Fountoulis; E. Andreadakis; E. Kapourani is a Environmental Science article available to read on EtoBox.

What is Real-time monitoring on Evrotas River (Laconia, Greece): dissolved oxygen as a critical parameter for environmental status classification and warning about?

The real-time water quality monitoring network of Evrotas River has been operational in Laconia since July 2004. The experience of more than a year of function has shown that dissolved oxygen is one of the most useful parameters monitored for warning and quality status classification. Concentration of dissolved oxygen in surface water is known to be a critical parameter for water quality and survival of organisms in it. At the same time, it provides an indication of the organic load in water, as well as the potential eutrophication. Dissolved oxygen in surface water normally depends on the atmosphere pressure and temperature that affect oxygen solubility. Real-time monitoring provides a very useful option through data processing that could not otherwise be implemented by conventional monitoring programs of any frequency. It is possible to monitor all daily variations of dissolved oxygen, replacing the unique value of one measurement in a conventional program, with a series of 144 measurements (every 10 min) regressing around a moving average value. This form of time series permits monitoring of the daily amplitude of dissolved oxygen fluctuation, which is an accessory indicator of

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Author

I. Mariolakos; I. Fountoulis; E. Andreadakis; E. Kapourani

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0011-9164)

Published

2007

Language

EN

Field

Environmental Science (Physical Sciences)