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  Tuesday, August 16, 2022
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The front part of the Sungari pollution slick has moved down the Amur River to the village of Bogorodskoye
The front part of the Sungari pollution slick has moved down the Amur River to the village of Bogorodskoye, the Far Eastern Hydrometeorology Centre reported on Monday. Now it is at a distance of only 238 kilometres from the river’s estuary and the Tatar Strait. Samples of water are being taken every six hours in the area of Bogorodskoye. No nitro-benzene was found in them in the course of the past twenty-four hours. Insignificant amounts, within the rate of a few hundredths of the maximum permissible concentration, are yet possible. In expert opinion, instruments will be unable to record the presence of nitro-benzene due to its low concentration, since the polluted water is mixing with that of the Amur and its tributaries. However, this does not mean that all the chemicals have dissolved and are no longer dangerous. Specialists, who are now monitoring the situation, believe “the nitro-benzene, benzene and other toxic substances are contained in the river ice and bottom sediments. The bulk of toxic agents have remained in the Sungari and Mid-Amur basins”. A comprehensive program of scientific studies is necessary to exactly assess the doses of toxic agents contained in the ice and on the bottom of the river, the doses that are accumulated in fish. The chemicals are bound to cause a renewed pollution of the river when the ice melts and the spring freshets begin. Pollution of flood-land lakes, gulfs, and spawning places can be expected during flood time. Samples of ice and bottom sediments are planned to be taken not only along the entire course of the Amur River from the village of Nizhne-Leninskoye to the estuary. The Chinese side was asked to allow Russian experts to take samples of water from the Sungari River in the area of Harbin, Jiamusi and Tunjian. The Russian Far Eastern scientists are also determined to calculate the quantity of toxic substances, which will flow into the Okhotsk and Japan Seas.
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