ArmInfo. The state of Lake Sevan continues to cause concern among ecologists. As head of the Association for Sustainable Human Development, Karine Danielyan, noted at a press conference on December 20, waterlogging processes in Sevan intensified, which became especially evident in the last two years, when in summer the blue-green algae literally captured the lake.
Pollution of Sevan waters by algae was also observed in previous years, beginning from the 1960s, however, flowering covered only certain sections of Sevan, while in 2018 and 2019 it covered almost the entire surface of the lake. Danielyan noted that in response to requests from relevant structures, data were received on planned programs, including the solution of problems with treatment plants in a number of coastal communities. However, environmentalists are concerned about the fact that even the amendments to the law adopted this year cannot fully protect Sevan from additional water pass in the event of a negative balance.
According to her, under the so-called emergency cases noted in the amendments, you can "fit" almost anything, including the dry season. Meanwhile, it is the increase in the level of Sevan that plays a key role in the issue of enhancing the processes of self-purification and, as a result, improving water quality. To note, the water pass from Sevan by September 1 of this year decreased by 46 million cubic meters in annual terms. As the RA Water Committee previously reported, as of the reporting date, water withdrawal from Sevan amounted to 129,044 million cubic meters, which is less than the indicator of the previous year by 26.2% or 46 million cubic meters.
The volume of water entering the lake through the Arpa-Sevan tunnel, as of September 1 of this year amounted to 148 343 million cubic meters., with annual growth of 12.8%.