Water quality in Hanoi’s lakes improves after cleaningThe water quality in Hanoi’s lakes, including 86 in the inner city and 44 on the outskirts, earmarked for renovation has improved markedly after months of dredging and cleaning, experts have announced. The water in the lake [Ngoc Khanh Lake] is cleaner and less smelly," said Vu Khac Hoa, a resident of Hanoi’s Ba Dinh district, who lives near Ngoc Khanh Lake. Test on water samples taken at these lakes revealed that lakes contained an excessive amount of pollution, compared to national standards. By the end of last year, the company was assigned to dredge and clean Hoan Kiem Lake. Pham Tung Lam, head of the Management Board of Hoan Kiem Lake, said the polluted mud layer disappeared when the dredging process had finished.