Details of the Chernobyl nuclear accident of 26 April 1986

The Chernobyl nuclear accident that shook the world originated from the cheating of one person and the dispatch of 600,000 people to rescue it.

Once upon a time. And so it happened.

The impact of the Chernobyl nuclear accident is far-reaching, and there are probably the following effects.

1. The total cost of this disaster is about 200 billion US dollars, which is one of the most costly catastrophic events in recent history, second only to the Fukushima nuclear accident. There were 10,000 deaths and 270,000 cancers.

2. The accident is considered to be the worst nuclear power accident in history and the first major accident to be classified as a Category 7 event by the International Nuclear Event Scale (the second was the Fukushima Daiichi Nuclear Power Plant accident in Fukushima Prefecture, Japan, on March 11, 2011). The city of Pripyat was thus abandoned. 3 successive ** caused fires and emitted large amounts of high-energy radioactive material into the atmosphere, and these radioactive fallouts covered a large area.

The radiation dose released by this disaster was more than 400 times that of the atomic bomb on Hiroshima during World War II. The radiation in that area is still very strong today.

3. Radioactive fallout has spread to almost the whole of Europe, with Russia, Belarus and Ukraine being the most severe, and other European countries, such as Turkey, Greece, Moldova, Romania, Lithuania, Finland, Denmark, Norway, Sweden, Austria, Hungary, the Czech Republic, Slovakia, Slovenia, Poland, Switzerland, Germany, Italy, Ireland, France (including Corsica) and the United Kingdom, have not been spared.

4. People are wary of the use of nuclear energy, and at the same time, anti-nuclear voices have risen in countries around the world, and even become the slogan of some political parties (anti-nuclear is one of the programs of the green baby on the island), and the nuclear leakage in Fukushima has intensified the world's anti-nuclear wave.

5. Some people say that the Chernobyl accident led to the collapse of the Soviet Union. accelerated the collapse of the USSR, at least to a certain extent.

6. Due to long-term exposure to radiation, many trees in the Chernobyl zone have developed very abnormal morphologies, which are due to mutations in the genes of the trees. The increasing number of genetic mutations has significantly affected the growth, reproduction and survival rate of trees. In addition, the study found that trees that survived accidents, especially relatively young ones, are increasingly unable to withstand environmental stresses such as drought.

7. Because of the serious radiation in the jurisdiction, it has become a paradise for animals, and some animals have many new mutations due to the influence of radiation, and some unexpected situations have occurred.

The impact has been particularly significant, affecting the lives of millions of people, and the radiation has caused many deaths and the loss of habitation.

After the Chernobyl accident, although more than 100,000 residents living within a radius of 30 kilometers were evacuated, many of them were injured by radiation to varying degrees because they were not evacuated immediately. Later, the residents of the 30-kilometre radius of the quarantine zone were finally evacuated, and for decades in the area, food such as milk and mushrooms were denied.

It was the world's worst nuclear power accident, when a lot of steam gushed out, there was a continuous ** situation, radioactive materials were sprayed everywhere, covering a large area of land, 400 times more powerful than the atomic bomb, **, 31 people died on the spot in an instant, this accident caused at least 200,000 deaths, affecting the air, affecting the land.

The main cause of the Chernobyl accident was operational error.

I think the root cause of the accident at the Chernobyl nuclear power plant was a major operational failure, and I think the root cause was a major failure in the operation of personnel, as well as the lax and inadequate emergency management and training on the eve of the nuclear power plant accident at that time. As a person who performs special work in a special place such as a nuclear power plant, good training must come first. It is clear that the USSR did not do a good job in this regard.

In addition, according to declassified data, there were widespread design flaws in nuclear power plants in the USSR at that time, which is also a very important reason.

There is one thing to say about the remedial measures taken by the Soviet authorities, and the reaction of the Soviet authorities was quite fast. Within a few hours of the incident, the expert group rushed to Chernobyl to conduct aerial photography and evidence collection of the ruins. In a few moments, the former *** threw thousands of tons of chemicals into the rubble, regardless of nuclear radiation.

Thousands of *** were all scrapped, and all pilots were severely irradiated. Thousands of workers and thousands of soldiers came to build huge concrete coffins that covered the entire ruins, and these people lost an average of ten years of their lives.

Although the fire was brought under control, the spread of nuclear contamination and the nuclear threat were not contained. Especially before the fire brigade sprayed a lot of water to extinguish the fire, which accumulated under the reactor. If molten uranium and graphite meet water, a large ** occurs.

Scientists estimate that if all the uranium were blown up, all of Europe would be razed to the ground. So, at the risk of their lives, firefighters entered the scene and drained the water. In the end, all the firefighters died.

In addition, the USSR sent *** to throw 2400 tons of lead, thereby extinguishing the fire. But lead dissolves when heated, and people are poisoned by inhaling lead, so these pilots died.

As for nuclear contamination, the biggest problem is that it can seep into the ground and pollute groundwater. So, the Soviet Union dispatched 10,000 miners, dug a tunnel up to 150 meters deep, dug another 30 meters around the furnace core, injected a large amount of coolant, and then surrounded it with a cement wall. In the future, a quarter of these miners did not live past the age of 40.

The rest of the survivors were mostly suffering from various diseases.

The main cause of the Chernobyl accident is due to the damage to nuclear equipment, which has a very large impact on the environment, and the environment has not yet been restored.

The main reason is that because of poor management, it led to the ** of the nuclear power plant, and the radioactive materials in it caused a great tragedy.

There are two conflicting official explanations as to the cause of the accident. The first was announced in August 1986, placing the blame for the accident entirely on the nuclear power plant operator. The second, published in 1991, explained that the accident was due to a design flaw in the pressurized tubular graphite-moderated boiling water reactor (RBMK), particularly the design of the control rods.

Blind confidence on the part of the operator. Obviously, he didn't meet the experimental conditions, but he didn't stop and missed the best time.

How did the Chernobyl nuclear accident, which shocked the world, break out?

By commemorating the accident, people should pay more attention to protecting the environment in which we live.

Chernobyl.

After the nuclear accident, a large amount of radioactive particles was blown north with the clouds. It is said that after the ** happened, Sweden Stockgoer blind draft hall Ermo.

Nearby nuclear power plant.

Workers underwent routine radiation checks while working, and their shoes showed 10 times higher radiation energy than normal. There are two most important elements in Chernobyl-contaminated radioactive material, one of which is radioactive iodine-131

The other is radioactive cesium-137. Once inhaled, iodine-131 can cause thyroid disease, including thyroid cancer.

Whereas, cesium-137 can cause damage to the hematopoietic system and nervous system.

The harm and impact of the Chernobyl nuclear accident caused more than 330,000 people to be forced to leave their homes, thousands of children to develop thyroid cancer, and millions of people to live in fears for their health and lives, whose effects continue to this day. According to expert estimates, it will take at least 800 years and 40 generations to completely eliminate the effects of this catastrophe.

Many of the disasters and repercussions of Chernobyl remain unravelable. In addition to the threat to the lives of the local population, the animals living in Chernobyl are also not immune. People can be evacuated, animals can only stay here.

For a time, there was a significant decrease in the number of animals in Chernobyl, all of which had genetic mutations due to radiation, such as the two-headed turtle and the six-legged sika deer.

For humanity, we will never forget this catastrophe. While vigorously developing scientific and technological civilization, mankind should also pay attention to protecting the environment. Although nuclear energy has greatly improved the economic level, it has also brought an existential crisis to mankind.

People who once lived in Chernobyl have escaped this nightmare, but nuclear radiation.

The effects have not gone away. Even now, many people are still sick and even die young. The local economic chain is broken, the standard of living has dropped sharply, and even the most basic treatment is not guaranteed, which is really like the doomsday scene in the movie.

That is, we must strictly do a good job of corresponding safety measures, try to investigate all potential safety hazards, and minimize the possibility of accidents.

The lesson that people have learned through this accident is that they must be careful and careful in everything they do, and if they can't, they will have something to hide, and a small lie can become irreparable for the damage caused by Shou Wu Ming.

Nuclear leakage is a very terrible thing. The international community should pay attention to this issue. The safe development of nuclear energy is an issue that needs to be addressed urgently.

Human actions not only seriously endanger nature, but also harm human beings themselves.

At that time, the Chernobyl nuclear accident killed tens of thousands of people and affected the health of more than 9 million people, some of whom committed suicide in agony, most of the medical staff suffered from mental illness, and some caused cancer. And most importantly, its effects on people are terrible and inexterminable, in addition to death, many newborns and animals have genetic mutations. Through the Chernobyl nuclear accident, mankind has also become more profoundly aware that man and nature should live in harmony, and that we should pay more attention to nature in today's vigorous development.

It's terrible, the accident caused a lot of nuclear leaks, and there are still a lot of dangers in that area, and a lot of people tried to reduce the risk at the time.

It is very terrible, this nuclear leak has affected the lives of many people, and caused a very large phenomenon, causing countless losses to the people, and reducing the economic decline of the entire country, which is very terrible.

At 1:23 a.m. on April 26, 1986, the No. 4 reactor of the Chernobyl nuclear power plant in the territory of the former Soviet Union in Ukraine had the most serious nuclear power plant accident to date, and radioactive fallout equivalent to the radiation intensity of 400 atomic bombs covered more than 60,000 square kilometers of land.

How terrible is the Chernobyl "nuclear leakage" accident?

There are man-made reasons.

Thinking they had restabilized the reactor, the engineers began their actual test run at 1:23:04 a.m. The unstable state of the reactor was not shown on the control board, and all the engineers were unaware of the danger.

At this time, the power of the pump is turned off, and the water flow is driven by the inertia of the turbine generator, and the flow rate is reduced. The turbine is separated from the reactor, and the amount of steam in the reactor core increases.

Due to the insertion mechanism of the control rod (18 to 20 seconds of slow completion) and the design structure, the bottom end of the control rod is designed with graphite, the graphite contact with the water coolant instantly leads to an increase in the reactor reaction rate, and the instantaneous increase in power leads to the deformation of the pipeline, and the control rod is stuck in one-third of the insertion of the pipeline, unable to effectively stop the reaction.

At 1:23:47 a.m., the reactor's power soared to 30 gigawatts, which is ten times the normal power value. The fuel rods began to melt and the vapor pressure increased rapidly, causing the steam **, the reactor roof to shift and be destroyed, the coolant pipe burst and a hole in the roof was blown out.

As a result, many people in the local area have been seriously affected by radiation and produced various diseases, and some local ecological environments have been seriously polluted, resulting in serious social turmoil in the surrounding areas, resulting in many deaths, and has caused great economic losses.

At that time, a large amount of steam gushed out, clothing substances gushed out to various places, covering a lot of areas, and the radiation dose released was more than 400 times more than that of the atomic bomb, 30 people died on the spot, and many firefighters went up to save it, but they couldn't come back in the end.

This incident had a great impact, many things were destroyed at the scene, and the surrounding air and environment were all polluted.

This incident has had a great impact, many things have been destroyed in the place where the incident occurred, and the atmosphere and environment around it have all been polluted in the future.

At present, there are still different opinions about the number of victims of the Chernobyl nuclear accident. The World Health Organization says 9,000 people died from radiation exposure, while Greenpeace reports put the number of carcinogenic deaths from the accident to about 10,000.

The report, based on the results of the Belarusian National Academy of Sciences, said that 2 billion people worldwide were affected by the Chernobyl accident, and 270,000 people suffered from cancer, including 10,000 deaths.

Previously, the Chernobyl Forum, a group of UN agencies, Ukraine, Belarus and Russia, had estimated that the death toll from the accident was in the thousands. But Ivan, an anti-nuclear activist from Greenpeace. According to Brokov, this data "whitewashes the consequences of the worst nuclear accident in human history."

Gregory, spokesman for the World Health Organization, based in Geneva. Heitel said that WHO statistics show that about 4,000 people died in the hardest-hit areas of Ukraine, Belarus and Russia. An estimated 5,000 people have died from various related cancers in low-pollution areas in these three countries. Heitel acknowledged that the WHO did not conduct a similar survey across Europe.

However, the WHO also said that 7 million people still live in areas with high levels of nuclear radiation.