Cam River is a small river located entirely in Nghe An province. It flows through the territory of Nghi Loc district and Cua Lo town. The Estuary of Cam river is the junction of Cam River and East sea, which receives wastewater from the residential area living along two riverside Cam river and Cua Lo town. In addition, it is also a major seaport in Vietnam Central region. In this work, we present the analysis results of surface water quality with 5 sampling points in the estuary of Cam river. The analysis results show that the water in the estuary was only B2 level and exceeded B2 level of National Technical Regulation on surface water quality (QCVN 08: 2015 / BTNMT). The BOD5 and COD in all 5 sampling points exceed the allowable standard (QCVN 08: 2015 / BTNMT) from 1,6 to 2,7 times; 3 sampling points have coliform and PO43- exceeding standard from 1,4 to 1,64 times. Total oil concentration of 4 sampling points showslight pollution as they exceed standard form 1,2 to 2 times. Especially, heavy metals level (Cu, Mn) in some locationsexceed the standard from 1,3 to 2,86 times.
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