The quality of water in the Sai Gon and Dong Nai rivers is showing further signs of toxicity, according to the HCMC Department of Environmental Protection after an inspection October 13.
|The quality of water in Sai Gon River is getting polluted (Photo:KK)|
In the Sai Gon River, microbiological concentrations were found to exceed allowable levels by up to 10 times. Microbiological concentrations in the Dong Nai River were found to exceed allowable levels by up to two times.
The quality of water in the city’s canals, which empty into the two rivers, has also repeatedly shown to be increasingly polluted. The Cai Xuan Truong, Nuoc Len, Cho Dem, Ben Cat and Ba Bo canals in particular have shown excessive toxicity levels.
The Sai Gon and Dong Nai rivers also receive a large volume of wastewater from residential areas and industrial zones.
Another factor affecting the quality of water in the Sai Gon River is salt-water intrusion, conditional upon weather conditions at the end of the rainy season, said Le Thi Xuan Lan, deputy head of the Southern Regional Hydro-Meteorological Center’s Forecasting Department.
Tan Hiep Water Plant is unable to deal with such sea-water intrusion which recently penetrated deep inland, she added.