A section of the river in Phuc La area of Ha Dong district.
This section is polluted by domestic wastewater collections from Ha Dong district and wastewater from production facilities and traditional craft villages in the area.
After that, the water continues to receive sewage from the To Lich River, thus worsening the overall pollution.
All parameters for measuring water pollution in this section, including chemical oxygen demand (COD), biochemical oxygen demand (BOD) and ammonium, an inorganic nitrogen compound, exceed the prescribed threshold.
