Kakhovka dam on June 6, 2023, shortly after partial destruction
Ukrhydroenerge / UPI / Alamy
The violation of Ukraine Kakhovka Hura fell down, threatened to interrupt the cooling system of a nuclear power plant and removing water from the water region. But a study finds nearly two years later, the most durable consequences may be the most horrible volume of polluted sediment remaining in the reservoir.
“The former area of the reservoir was piling up as many pollutants as a big sponge,” he says Oleksandra Shumilova Leibniz freshwater ecology and internal fishing, Germany. Exposures of almost large pollutants in Luxembourg can cause a long-term threat to local populations and ecosystems, and the debates would make it difficult to reconstruct the dam in Russia-Ukraine.
On June 6, 2023, Zakohovka Hura section south of Ukraine It has fallen after an explosionThe water-torrena is the release of one of the largest reservoirs in the world at the Dnioper River and in the Black Sea. Ukraine and Russia accused Russian forces at the time they controlled the Russian forces at the time.
Ukrainian officials expected immediately Floods and pollutants in the water would destroy ecosystems. UK based spokesperson Conflict and Environment Observatory It calls the destruction of the dam “the only action that harms the environment of the entire scale invasion”. But the constant war has made a more complete evaluation in the field.
For more complete photograph, Shumilova and his colleagues rebuilt water flow and sediments, after fracture, hydrological models, satellite images and collected data in front of the invasion of Russia. “Our goal was to give clean scientific response: What happened based on scientific evidence?” He says.
Floods created by the floods found a cubic sediment in the reservoir of the reservoir, and many of them were contaminated with heavy metals and other contaminants from industry and agriculture. The flood would receive more than 7 cubic kilometers from the bottom of the dam, as well as some oil and chemicals from the facilities that are flooded from the river. When he reached the Black Sea, this flood water was visible in satellite images with 7300 square kilometers with water.
Changes to water coverage after Kakhovka exploded
Eosda
Although this immediate flood was detrimental, the pollution left behind by researchers creates a big problem on their own. They appreciate more than 99 percent of infected sediments in the reservoir. These sediments can have more than 83,000 tonnes, such as lead, cadmium and nickel, and now there are almost 2000 kilometers of 2000 miles.
This involves health risks that the water wells that collect water from the local ponds, Shumilova says. The bed of the reservoir can also damage plants and animals that moved quickly. The arguments of some environmental groups in Ukraine could also complicate the recovery of this ecosystem that will not be rebuilt after a dam war, he said.
Bohdan Vykhor The World Fund of the Ukrainian Division of Nature agrees, the pollution puts a capacity to restore the ecosystem. But it says that the region is supplied with water and other sustainable alternatives to supply electricity, rather than rebuilding the dam.
“Building Kakhovka Presa was a disaster for nature, the destruction of the dam was a disaster for nature, and if we rebuild it, it could be another disaster with nature,” he noted.
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