![]() ![]() ![]() The project was a cooperative effort between the United Nations (UNDP and UNIDO) and the Federal and Provincial governments in Vietnam. Has been drawn a conclusion of need to create and carry out the State monitoring of water environment and coastal zones, and to introduce systems for artificial water aeration in water bodies to improve water’s self-cleaning ability.Ī three-year study that started solely as an industrial pollution reduction effort in Dong Nai Province of Vietnam expanded into an ongoing regional river basin water quality management effort. Has been presented data on quantitative composition of pollution from different branches of industry. The main dangerous sources of river’s pollution are biological oxygen demand (more than 2.79 MPC), chemical oxygen demand (more than 3.29 MPC), ammonium nitrogen (more than 50 MPC), petroleum products (more than 20 MPC), phosphates (up to 10 MPC), and other substances. The data on devices and methods for assessment of quantitative and qualitative composition of Tolich river’s water has been presented. The main part of pollution comes to water bodies through the city’s drain network, and directly through the urban areas’ relief. The results of instrumental studies for water pollution in many water bodies, and in the Tolich river - the principal river of Hanoi, capital of Vietnam - have been presented. ![]()
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