TPO – Domestic and industrial wastewater from residential areas still flows into the Day River, causing serious pollution and a foul odor. Not only that, sedimentation and encroachment on riverbanks by dumping waste have caused the riverbed to become increasingly narrow.
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| According to the Hanoi Department of Natural Resources and Environment, the Day River is the first major distributary on the right bank of the Red River. Starting from Hat Mon estuary, it flows in the Northeast - Southwest direction and empties into the Gulf of Tonkin at Day estuary (Kim Son district, Ninh Binh). The Day River has its main flow through 9 districts of Hanoi. |
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According to Tien Phong's records in late December 2024, the Day River section flowing through Dan Phuong, Hoai Duc, and Quoc Oai districts (Hanoi) is seriously polluted. Especially recently, there has been no heavy rain, while wastewater from daily life and production is still discharged into the Day River. |
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The Day River section across bridge 72, bordering Quoc Oai and Hoai Duc districts, is pitch black with garbage flowing from the banks into the river. |
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Wastewater in residential areas in Cong Hoa commune (Quoc Oai district) flows directly into the Day River. |
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Along the banks of the Day River in Van Con commune (Hoai Duc district), people dumped rocks and soil, encroaching on the river. |
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The report on the current state of the environment in Hanoi, the water environment topic conducted by the Hanoi Department of Natural Resources and Environment shows that the water quality of the Day River has been polluted by organic parameters such as: BOD 5 , COD, NH 4 + , PO 4 3- . In which, the concentration of pollutants tends to decrease from upstream to downstream (photo: Day River section flowing through Yen Son commune, Quoc Oai district). |
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| Faced with the pollution of the Day River, Hanoi voters have repeatedly requested the city to soon have a plan to "revive" this river. Responding to voters' petitions, the Hanoi People's Committee said that the Ministry of Agriculture and Rural Development has implemented the project "Dredging and improving the riverbed of the Day River in Hanoi". The scale of the dredging project is from Day Dam (Dan Phuong district) to Yen Nghia ward, Ha Dong district with a total length of 23km (photo: Day River section in Hat Mon commune, Dan Phuong district). |
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| The project is divided into 2 phases. Phase 1 is dredging the river from downstream of Day Dam to K8+700 and building Hiep Thuan bridge has been completed. Phase 2 (dredging from K8+700 to Mai Linh bridge, Yen Nghia ward, Ha Dong district with a length of 14.4 km; building 6 bridges across the river and upgrading 5 pumping stations along the river) is currently not balanced in terms of capital so it cannot be implemented yet (photo: Day River section through Hat Mon commune, Dan Phuong district). |
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Wastewater from a residential area in Quoc Oai district flows into the Day River. |
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The Hanoi People's Committee has directed relevant departments and branches to implement many specific solutions to contribute to improving the pollution of the Day River water source according to the Hanoi Capital Drainage Plan to 2030, with a vision to 2050 according to Decision No. 725/QD-TTg dated May 10, 2013 of the Prime Minister (photo: Day River flowing through Hat Mon commune, Dan Phuong district). |
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A wastewater line from a residential area in Quoc Oai district flows into the Day River (right at the foot of the Day River bridge). |
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People in Hoai Duc district dump construction waste on the Day River. |
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To reduce pollution of the Day River, the Hanoi People's Committee has requested relevant departments, branches and units of the city to strengthen inspection, examination and supervision of organizations, individuals, production, business, service and medical establishments... in the field of environmental protection and water resources (photo: People of Van Con commune, Hoai Duc district) encroaching on the Day River). |
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