Except for temperature (°C) and DO (mg/l and % saturation), which were determined in situ at each sampling point by means of a WTW OXI 320 oxygen meter, all other water quality variables were analysed within 6 h after sample collection.
Except for temperature (°C) and DO (mg/l and % saturation),which were determined in situ at each sampling point by meansof a WTW OXI 320 oxygen meter, all other water qualityvariables were analysed within 6 h after sample collection.