Embankments help in improving water quality according to recent report.
The quality of water in Hanoi’s lakes is on the improve according to the “Hanoi Lakes Report 2015” on a project implemented by the Vietnam Environment Protection Fund and the Center for Environmental and Community Research (CECR).
“Lakes, small ponds, and rivers are invaluable environmental assets of Hanoi,” Ms. Nguyen Ngoc Ly, Director of CECR, said. “Management requires an integrated approach combining conservation and technology and the involvement of businesses, the media, and scientists. We need to have policies to promote more effective participation.”
The report assessed changes to Hanoi’s lakes after five years of research at lakes in Cau Giay, Tay Ho, Ba Dinh, Hoan Kiem, Dong Ha, and Hai Ba Trung districts.
Water quality is generally compared with 2010. Eighty-two per cent of the lakes in the capital are now fully embanked and were rated as clean and quite clean, while 14 per cent were dirty and 4 per cent were very dirty.
The number of lakes in Hanoi fell from 122 to 112 between 2010 and 2015 and the total surface area declined by 72,540 sq m.