”The storage of pickled pepper chicken feet is due to nuclear technology” in the top search list on Weibo in early 2021. Many netizens are surprised that nuclear technology can be used for chicken feet storage. At the same time, they are also worried about the safety of “nuclear radiation chicken feet”. Some even claim that chicken feet that have been “radiated” may cause cancer.
In fact, people’s worries about nuclear radiation have always existed, and the rumors related to this technology have never stopped: living next to a nuclear power plant will be irradiated, and after being exposed to nuclear radiation, there is no cure… Are these claims true or false? Is nuclear radiation really that terrible?
Rumors: chicken nuclear radiation cause cancer
Truth: Nuclear radiation irradiated food is different from food
aid nuclear irradiation sterilization techniques, so that the original can only be stored 3 to 5 days of pickled chicken feet, shelf life can be extended to six months or even longer. But there are rumors that this type of irradiated food is radioactive and can even cause cancer. Is it really the truth?
Experts say that food spoilage is mostly caused by the reproduction of microorganisms. Food irradiation technology is based on radiation processing technology, using gamma rays emitted by radioisotopes, electron beams and X-rays generated by accelerators to break the DNA molecular chain of microorganisms, kill pathogenic bacteria, and extend the storage time of food. The food that has been irradiated once will not be contaminated with radioactive substances, and because preservatives are rarely used, the safety of the food is improved. Because irradiation is a cold process, it will hardly affect the temperature of food, so the nutrients lost in the food are relatively small, and the original flavor of the food can be retained to the greatest extent.
Irradiated food is not equivalent to nuclear food. What causes public sensitivity is actually food contaminated with radioactive nuclear contaminants, that is, nuclear contaminated food. This kind of food will continuously release nuclear radiation because it is contaminated with radioactive materials, and accidental consumption can cause harm to the human body. Irradiation technology is a nuclear application technology that can be used as an efficient and safe sterilization method for food preservation and epidemic prevention.
Rumors: consumption of iodized salt, iodine can prevent nuclear radiation
truth: a very limited role in the anti-nuclear radiation
after the 2011 Japanese Fukushima nuclear accident, nuclear dust in the air was determined to contain iodine-131 radionuclides. Subsequently, there was a phenomenon of looting for iodized salt in many places. It is said that excessive intake of iodine is not easy to absorb the above-mentioned radioactive elements, and until now, some people still believe in this statement.
In this regard, experts pointed out that iodine is an essential trace element for the human body, and the harm of iodine deficiency and excess iodine cannot be underestimated. Iodine-131 is a radioactive isotope of iodine, accidental ingestion or exposure to it can threaten human health. Consumption of iodized salt and iodine tablets can reduce the absorption rate of iodine isotope, and it will have a slight mitigation effect for people living in areas contaminated by radioactive iodine. The main component of iodine tablets is potassium iodide compound, which can inhibit the absorption of radioactive iodine by the human thyroid gland, so that the radioactive iodine is excreted from the body, so as to protect the body’s tissues.
However, experts say there is no need to rob or hoard iodized salt. First of all, the content of iodine in table salt is extremely low, which cannot reach the amount required to suppress radioactive iodine. Excessive iodine intake is also harmful to the body; secondly, iodine supplementation has no effect on other radioactive components such as cesium, plutonium, and tritium. effect. Therefore, whether or not to supplement iodine and how to supplement iodine should be guided by a professional doctor.
Rumors: living near a nuclear power plant will be high-dose radiation
truth: the average annual radiation is about equal to ride an airplane
public for fear of nuclear power plants in general psychology from the following three aspects: fear their safety is not high, for fear of leaks; it The waste generated may not be treated properly; if you live in the surrounding area, you are afraid of being radiated. Are these concerns necessary?
Experts say that the shielding and protection facilities of nuclear power plants are now well built, and living near nuclear power plants will not cause radiation hazards. Radiation is ubiquitous in the human living environment, in the air people inhale and the food they eat. The radiation dose received by flying 2,000 kilometers in an airplane is about 0.01 millisievert, which is the average amount of radiation received by residents living next to nuclear power plants each year.
Compared with other industrial facilities, the probability of accidents in nuclear power plants is the lowest. my country’s nuclear power plants are already in the forefront of the world in terms of design, management, and technology. For example, my country’s self-developed “Hualong No. 1″ nuclear power system uses third-generation nuclear power technology to meet the latest international safety requirements for nuclear power plants. These have effectively reduced the possibility of nuclear accidents and their impact on human health and the environment.
Myth: wearing white clothes can block nuclear radiation
Truth: anti-nuclear radiation depends on the distance, time and shielding degree three elements
generally, in the hot summer, we wear white clothes will feel more cooler than dark clothing. This is because white clothes have a higher reflectivity of visible light, which can reach 90%. Some people therefore claim that wearing white clothes can also reflect nuclear radiation. is this real?
Compared with clothes of other colors, white clothes do not have any advantages in preventing nuclear radiation. The three elements of nuclear radiation protection are distance, time and degree of shielding, regardless of color. Clothes of different colors have different absorption capacities for heat radiation, but basically no difference in their ability to block nuclear radiation.
”If you encounter nuclear radiation, you should shorten the exposure time as much as possible and stay away from radioactive sources. Wear protective clothing when entering and exiting nuclear-contaminated areas, and take showers in time to remove nuclear pollution.” Experts pointed out.
Myth: After subjected to nuclear radiation incurable
truth: even if exposed to high doses of radiation still hope for survival
experts pointed out that it is incurable by nuclear radiation, is nonsense. The severity of individual exposure to nuclear radiation is related to the type of radiation, the exposure dose, the exposure location, and individual differences. People use sieverts and millisieverts as radiation dose units to measure the damage of radiation to biological tissues.
In daily life, people have been exposed to very low doses of radiation. As long as the threshold of the deterministic effect is not reached (the radiation above this level has a very serious impact on the human body), the human body has almost no clinical symptoms. Even if the threshold of deterministic effect is reached, when the radiation dose is less than 1 sievert, a timely and correct treatment plan can save most people’s lives. Even with higher doses of radiation, there are many cases of successful treatment.