What areas of Changsha are suffering from water pollution? I need a particularly detailed answer, thank you!

The Weishui River is more seriously polluted by paper-making and other enterprises along the river; 400,000 tons of chrome dregs piled up at the Changsha Chrome Salt Factory pollute the river by flooding with rainwater; the production wastewater from the 'Sanhuan Pigment Factory' in Pingtang Township is discharged directly into the Xiangjiang River without any treatment. ...... "On January 7 this year, the Changsha CPPCC Population Resources and Environment Committee put forward a "proposal on doing a good job of water environmental protection in Changsha", calling for the strengthening of the Changsha section of the Xiangjiang River water quality protection .

Hunan Children's Hospital

After investigation, the unit in May 2005 found that the municipal sewer sewage backflow into the medical wastewater disposal facilities disinfection pool, affecting the normal operation of medical wastewater treatment facilities, resulting in water quality at the outlet exceeded the national discharge standards, but in up to more than a year without taking effective measures to resolve. 2006 January 18, May On January 18 and May 23, 2006, Changsha Environmental Monitoring Center Station twice sampled and tested the wastewater discharged from the unit, and the results showed that the fecal coliform bacteria discharged from the medical wastewater of the unit were ≥2.4×104 bacteria/liter, which exceeded the GB8978-1996 Comprehensive Wastewater Emission Standards by 3.8 times.

Changsha Water Conservancy Investment and Construction Management Limited Liability Company Delta Pond Pumping Station Project started on December 16, 2005, of which the first section of the investigated project (Beijing-Kowloon Line by the side of the Yuejin Lake) started in April 2006, and from the beginning of September 2006 began to dredge and drain the Yuejin Lake. The construction unit did not carry out environmental impact assessment of the Delta Pond Pumping Station project before the commencement of construction, nor was it reported to the environmental protection department for approval, and when dredging the Yuejin Lake, there was no corresponding environmental protection plan, nor did it take corresponding treatment measures to prevent pollution of the water discharged from the lake, and discharged the water directly through the Sanshiang Culvert to the Liuyang River, which caused direct pollution of the Liuyang River. By the Changsha Environmental Monitoring Center Station of the discharged water quality sampling and analysis within the cofferdam of Yuejin Lake, its chemical oxygen demand of 2.26 × 103mg / L, exceeding the standard 14.1 times, ammonia nitrogen 1.41 × 102mg / L, exceeding the standard 4.64 times, total phosphorus 27.8mg / L, exceeding the standard 26.8 times, sulfide 24.6mg / L, exceeding the standard 23.6 times

Hunan Normal University Hospital

Changsha Environmental Monitoring Center Station in the second quarter of the monitoring of key sources of pollution found that the unit's medical wastewater fecal coliform ≥ 2.4 × 104 bacteria / liter, has greatly exceeded the national emission standards