Japan began to discharge nuclear pollution water on August 24, which aroused the attention of neighboring countries. It also reminded people of the fate of a Japanese related to discharge nuclear sewage.Yuga Kangbo, a Japanese official who is "drank" by nuclear pollution water.At present, some media have claimed that Garden Kangbo has died in 2020. It has suffered from multiple bone marrow tumors and rotten.
According to many common sense, the news is likely to rumors.Even if he couldn't search for news now, it did not mean that he had health problems, let alone that he had died of multiple bone marrowoma (a hematological disease).One of the most important common sense is that only the dose can determine whether one substance is toxic.Therefore, even though Yuga Kangbo drank water with treatment and containing radioactive substances (nuclear), it is impossible to confirm whether the radiation volume is sufficient to induce disease and death.
Of course, on the other side, it is not possible to prove that nuclear sewage is safe.Just as at the press conference of that year, Yuantian Kangbo drank the water in the underground building of Unit 5 and 6 after being filtered and purified, and answered the reporter's question, "Although I drink it, it does not mean that it can prove that its safety can be proved to its safety.Sex. This is meaningless. It is because someone drinks it. "
However, under the nuclein irradiation of the Fukushima nuclear power plant so far, no one has not passed the exact scientific evidence that it is confirmed that it has died due to radiation.Of course, in 1986, the Soviet Chel Nobel Nuclear Power Station accident caused some people to suffer from cancer and death. There was a clear causal relationship between them because the amount of nuclear radiation received by people was too large.
Mrs. Curie has been in radioactive damage for 35 years
Historically, those who can prove to be in nuclear radiation and cause hematological diseases are Mary Hurry (Mrs. Juri).On November 8, 2020, the Nobel Prize official Twitter issued an announcement: From 1899 to 1902, the experimental notebook used by Mrs. Curie was still radioactive and will continue for 1500 years.Due to long -term contact with radioactive substances, Mrs. Curie died on July 4, 1934 for suffering from malignant anemia due to recycled disorders.
Various malignant anemia is also a kind of blood cancer, but how much radiation doses did Mrs. Curie cause this blood cancer, it was not clear.The human body has great lethality, so he does not protect himself well.
It can only be said that from 1899 research to radioactive elements to died in 1934. In 35 years, Mrs. Guri has been in the radioactive damage of nuclein.
In 1903, the Hurry and Bercalline jointly won the Nobel Prize in Physics due to radioactive research.In 1911, due to the discovery of elements and radium, Mrs. Juri won the Nobel Prize in Chemistry again, becoming the first two Nobel Prize in the world.Mrs. Curie's achievements, including the creation theory of radioactiveness, inventing separation and radioactin technology, and discovering two new elements and radium.Because of her contribution, radioactin is also used for cancer for the first time.
According to analysis, Mrs. Curie may be radiated with more radiation and longer.The elements of the atomic order of 84 are a silver -white metal. It is very rare on the earth and has toxicity, but its half -life is only 138 days, so the radiation volume of Mrs. Curie can basically ignore it.But the radium is very different. Its atomic order is 88 and has strong radioactivity.Among the radium isotonophane family, the most stable isotope is radium -226, with a half-life of about 1600 years.This is why the Nobel Prize official Twitter claimed that Mrs. Juri's laptop was about 1500 years.
How many doses of radiation have Mrs. Curie in the end, it has no evidence and research.However, according to the radiation safety value recommended by the International Radiation Protection Commission (ICRP) and the World Health Organization (WHO), it can be known that radiation is not terrible, and people live in a world full of radiation.
The radiation safety value ofICRP and WHO is 1 millimeter/year, and the converted, 0.1 micro -purity per hour (0.1 μSV/h, 1 Howater is equal to 1000 mm, 1 mix is equal to 1000 micro -grach); suffered by 1,000); suffered by 1,000 micro -grach); suffered 1000 micro -grach); receivedThe personal dosage limit of occupational irradiation is 20 mix / year, such as hospital radiology medical staff and nuclear power plant staff.Moreover, this refers to free or artificial radiation from non -background (bottom) radiation.This bottom radiation includes nuclear radiation in nature, such as uranium ore, granite layer, and food; artificial radiation is a nuclear radiation generated by human activities, including X -rays, CT, smoke, and drinking nuclear sewage.
Studies have found that when the short -term radiation volume is less than 100 mmhwart, it is not harmful to the human body; when 100 to 500 mmhwart, there is no disease, but the number of white blood cells in the blood is decreased; 1000 to 2000 mmThe number of white blood cells is extremely reduced, and there are symptoms such as internal bleeding and vomiting; when the dose exceeds 4000 mmhwart and has no medical monitoring, it has a mortality rate of 50%; when the dose exceeds 6000 mmwarter, it may be fatal.
From the corresponding relationship of these values, Mrs. Curie was at least radiated by 100 to 500 mixhwart, and it was radiated by this dose for many years.
Banana theory is easy to understand
Now, experts in the field of nuclear radiation also use banana theory to measure the radiation dose and harm to people, because it is very easy to understand.
0.0117%of radioactive potassium-40 in a banana is equivalent to the radiation dose of 0.1 micro-gray, that is, the safety value.If you want to break through the annual safety dose of artificial radiation, you need to eat 10,000 bananas a year, and it is assumed that the elements of potassium will stay in the human body for a long time.Beyond this standard, the carcinogenic rate of human body will rise sharply.
Therefore, from the half -cup of treatment of nuclear sewage drained by Yuantian Kangbo, even if there is radiation, it is not enough to lead to cancer and death.According to data monitored by the International Atomic Energy Agency (IAEA) on August 24, the first batch of diluted nuclear sewage radiation doses were about 16 micro -gray, which is equivalent to the nuclear radiation of 160 bananas.
According to a person drinking 4 liters of water daily, if you drink all the Fukushima nuclear sewage, you only absorb the amount of radiation of 64 Weixi, which is equivalent to 640 bananas.But no one will only drink Fukushima nuclear sewage and eat 640 bananas every day, not to mention that after nuclear sewage enters the sea, it will be diluted by a large amount of seawater, and the seawater is not drinking water.
Of course, the situation after nuclear sewage discharge also needs to be monitored at any time. The international atomic energy agency has already stated that in addition to on -site monitoring, the atomic energy agency will also pass the continuous on -site existence and continue the safety review during the emission stage to perform the institution to perform the agency.Director -General Gross's commitments will participate in it before drainage.
The author is Beijing scholar