Catalina Iticescu, Gabriel Murariu, Lucian  P. Georgescu, Adrian Burada, Catalina Maria Topa<br>Seasonal Variation of the Physico-chemical Parameters <br>and Water Quality Index (WQI) of Danube Water in the <br>Transborder Lower Danube Area

Catalina Iticescu, Gabriel Murariu, Lucian P. Georgescu, Adrian Burada, Catalina Maria Topa
Seasonal Variation of the Physico-chemical Parameters
and Water Quality Index (WQI) of Danube Water in the
Transborder Lower Danube Area

Abstract:

Danube water assessment is a major concern in the international area of the Lower Danube which corresponds to Romania, Republic of Moldavia and Ukraine nearby to the industrial objectives and densely populated regions. Physico-chemical parameters, namely pH, TSM (Total Suspended Mater), filterable residue, Cl -, SO42-, NO3-, NH4+, BOD (biochemical oxygen demand), (chemical oxygen demand) COD-Cr and phenols were monitored for the present study. The pollution in the monitored area is due to factors depending of upstream and local area. The monitoring was conducted seasonally between 2010 and 2012 and data interpretation was done using statistical analysis methods as: elemental analysis, the Principal Component Analysis (PCA) and the principal factor analysis (Varimax rotation). Water quality index (WQI) was also calculated. Statistical studies established the most important set of parameters to be measured for an optimal monitoring strategy to be effectively applied in this area of the Danube. Keywords: Danube, water quality, physico-chemical parameters, WQI, PCA

Issue: 2016, Volume 67, Issue 9

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This article is published under the Creative Commons Attribution 4.0 International License

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