The head of the committee's Natural Resources and Environment Division, Le Dinh Cung, said enterprises from 17 different fields, such as food processing, slaughtering, and recycling, will be moved.

The city now has 422 industrial manufacturing enterprises, covering the total areas of 887.7ha, said Cung. There are 26 industrial zones that discharge about 100,000-120,000cu.m of waste water each day and night and only 20-30 per cent of the waste is treated before being discharged, he said.

Only five industrial zones, Bac Thang Long, Phu Nghia, Quang Minh, Ngoc Hoi, and Phung Xa,ù have waste water treating system.

From now until the end of the year, departments will make concrete plans to move the damaging enterprises.

By mid-2011, environmental departments plan to have a completed list of all of these manufacturers.

"The city authorities will strive to move 115 enterprises covering a total area of 154.2ha by the end of 2012," said Cung.

The remaining enterprises will be moved by 2015.