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

Table 4

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

Water quality parameters (unit)	Water sampling station
	Luncanii de Jos			Balinţ
	Max.	Min.	Mean	Max.	Min.	Mean
DO (%)	146.3	60.6	97.6	154.1	48.3	89.1
pH (U pH)	8.3	7.6	8	8.1	7.2	7.7
BOD5 (mg O2/L)	3.7	0.8	2	6.1	1.5	3.4
Temperature (°C)	19.8	2.2	10	23	1.7	11.4
Total P (mg P/L)	0.242	0.032	0.099	0.381	0.037	0.128
N-NO2^− (mg N/L)	0.015	0.002	0.007	0.041	0.006	0.017
Turbidity (mg/L)	54.9	4.4	18.8	232.4	5.2	55.5
Overall WQI	66	84	85	61	80	82
Class	III	II	II	III	II	II
Water quality status	Medium	Good		Medium	Good
Water quality concern	Marginal concern	Lowest concern		Marginal concern	Lowest concern

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