Ajka Veszprem, Hungary, a state pool of aluminum waste leak Oct. 4, about 100 million cubic meters of toxic waste containing heavy metals such as lead near the three villages flocked and rivers, resulting in 7 deaths, 150 injured. Hungarian Prime Minister Viktor Orban visited the disaster area, will be the pollution incident as “an unprecedented ecological disaster in Hungary.”

This disaster has aroused the attention of people around the world, the accident itself is certainly shocking and sad, though active in disaster relief after the Government of Hungary, making the Danube, Europe’s second largest waterway pollution under control in time, but for the omission of such accident prevention measures the world is still worth a warning.

Unprecedented ecological disaster

According to MTI reported the afternoon of October 4, aluminum production and trading company located in Hungary Ajka aluminum plant storage of toxic waste pond burst its banks, 100 million cubic meters of toxic waste containing heavy metals such as lead into the vicinity of three villages, and rivers, in the influx of more than 450 houses, containing toxic heavy metals in alkaline water contacts the skin burns, and many people climbed on the roof waiting for rescue.

As of October 8, this accident has caused 7 deaths, 1 missing and 150 injured. The victims included driving a vehicle buried by the death of the man, a woman, a 3-year-old child and an only 3-month-old baby.

Aluminum toxic waste containing heavy metals, contaminated land is red, red soil is the most harmful ingredient sodium hydroxide, pH value reached 13, was strongly alkaline, the chemical widely used in aluminum refining.

Sodium hydroxide can irritate the eyes and nose, or even cause burns, the severity depending on the concentration of sodium hydroxide, contact time and contact area, and other factors, the most severe cases can cause death. According to the different degrees of damage, including cleaning and treatment measures such as skin grafts.

Toxic mud not only harmful to human health, but also serious damage to the environment. Contaminated water arrived 7 main tributary of the Danube Danube Mo Xiong, noon to reach the Danube, the water was alkaline than normal.

Hungarian disaster management department said that after the accident, the staff in various low dam built to intercept sediment, and then move it out of bed. Meanwhile, the calcium sulfate into the contaminated water and acid to neutralize the alkaline. Although these measures to keep the Danube river bifurcation Mo Xiong Danube, but the first to contaminated streams and rivers are subjected to ecological disaster. Most of the pollutants remain in the hair Ercao r..

Mao Ercao Seoul river ecosystems have been a fatal blow. Some environmentalists say the river pollution, “all fish kill” plants spared, biological “extinction.” After this destruction, Mao Ercao Seoul river ecosystems may take 3 years to 5 years to recover.

Hungarian Prime Minister Orban visited the disaster area on the 7th, will be the pollution incident as “an unprecedented ecological disaster in Hungary.” Cologne, in his hard-hit village of Tal said: “Words can hardly describe. If this happens at night, everyone not survive.” In his view, the village can not continue to live and rebuild “meaningless.”

Environmentalists worried about possible long-term impact of pollution in the local ecosystem. It is reported that lead, arsenic, chromium and other heavy metals do not dissolve in alkaline liquids, but soluble in acids, so rescue workers after the accident has been using acid and alkali in the water. But these materials have a certain toxicity itself, and these substances will be dissolved into the plants and fish absorb the body, may further exacerbate the survival of flora and fauna around the pollution of the environment.

Danube is Europe’s second longest river, out of Hungary after passing through six countries, into the Black Sea. Main tributary of the Danube some non-contaminated, some wildlife deaths. But experts said the disaster management in Hungary, the Danube itself has been subject to pollution control. After measurement, the water pH value has returned to normal range.

WWF head in Hungary, said that the rivers Danube, to dilute the concentration of alkali, pollution should be controlled in Hungary. Executive Secretary of the International Committee of Protection of the Danube, said Philip Weller, Hungary adopted a series of measures to control pollution, coupled with a huge amount of water the Danube, even spread to other countries, the degree of “not serious.”

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