Hanoi's pond and lake pollution reaches alarming levelsVietNamNet Bridge - The natural conditions in Hanoi are favorable for aquaculture with 4,327 hectares of lakes and rivers which allow the farming of fish in cages. Scientists did not find antibiotic residue or residue of Dipterex and Malachite green residue in the samples. The sub-department also took 200 fish breeder samples from 10 breeder production facilities and 1,800 commercial fish samples from 18 breeding concentrated areas for monitoring. The Hanoi Fisheries Sub-department examined 112 water samples from seven breeding facilities and found the BOD, COD, H2S and NH3 concentration exceeding the permitted levels in many samples. In some aquaculture areas, the pollution has become so serious that farmers have to block inlets and outlets to prevent polluted water.

Source: VietNamNet News January 04, 2018 03:11 UTC