Water Pollution and Water Quality Assessment of Major Transboundary Rivers from Banat (Romania)

Table 5

Water quality status and WQI values at sampling stations from the Bega River.

Water quality parameters (unit)	Water sampling station
	Timişoara			Otelec
	Max.	Min.	Mean	Max.	Min.	Mean
DO (%)	148.9	44.9	85.6	136.9	23.8	61.9
pH (U pH)	7.8	7	7.4	7.7	6.9	7.3
BOD5 (mg O2/L)	3.8	0.8	1.8	10.3	3.2	5.7
Temperature (°C)	23.9	1.4	12.2	24.7	1.5	13.1
Total P (mg P/L)	0.395	0.026	0.117	0.881	0.161	0.418
N-NO2^− (mg N/L)	0.041	0.004	0.013	0.268	0.011	0.056
Turbidity (mg/L)	132.1	5.7	30.1	134.8	5.2	28.9
Overall WQI	65	80	84	64	69	68
Class	III	II	II	III	III	III
Water quality status	Med.	Good		Medium
Water quality concern	Marginal concern	Lowest concern		Marginal concern

Source. Data processed by the Banat Water Basin Administration (ABAB) Archives, Timişoara.