Recently, various practices related to “radiation protection” and the heat of products have increased, and the term “irradiation protection against iodized salt” “nuclear radiation can be protected against radiation” has been popularized。
In fact, most of the so-called “radiation-proof” products sold on the market are not truly radiation-proof, and inappropriate use can also be harmful to health。
Iodized salt
The stabilization of iodine prevents human thyroid absorption of radioactive iodine. The use of stable iodine tablets before and after exposure to nuclear radiation can pre-empt the thyroid and saturate the thyroid, thereby reducing the damage to the thyroid caused by radioactive “iodine-131” from nuclear radiation. However, the stabilization of iodine only protects the thyroid and does not protect the rest of the body。
Iodized salt does not prevent nuclear radiation。
Because the amount of stable iodine in iodized salt is too low, it is far from what is needed to prevent the concentration of radioactive iodized iodine in the thyroid. In our country, the iodine content per kilogram of salt is 20 to 30 mg (in iodine) and the recommended dose of iodine for adults in the nuclear accident is about 100 mg. Iodine in 3 kg of salt is equivalent to iodine in 1 tablet of iodine. It's obviously not realistic to eat salt so much。
Potassium iodide tablets
The web-based “iodized potassium tablets can effectively prevent the contamination of iodine-129 in water” and search for “nuclear radiation pills” on the electrician platform, with the most common and best sold potassium iodized。
The search for “nuclear radiation pills” on the electric power plant is mostly carried out with potassium iodide。
However, yang yong, the pharmacist, director of pharmacology, sichuan people's hospital, stated that the drug “cassium iodide” was used mainly for the prevention and treatment of local thyroid swelling, pre-operative preparation for thyroid hyperactivity and thyroid hyperplasia. In the treatment instructions for potassium iodide, there is no “radiation protection”。
Yang yong warned that potassium iodide was a therapeutic rather than a health-care substance and that the excessive use of potassium iodide for fear of radiation caused thyroid disorders. On the other hand, products declared to be “radio-resistant” on the internet are in fact health products, dietary supplements, etc., with very little potassium iodine content。
Other experts indicated that japan's released nuclear contaminated water contained more than 60 radionuclides, and that iodine tablets could only be used to prevent human absorption of radioactive iodine in them and did not work with other radionuclides. In the event of a nuclear accident, an expected dose of up to 50 msv is required to take iodine tablets, which are not required for radioactive contamination of sea products by nuclear contaminated water。
Nuclear radiation detector
Recently, the “nuclear radiation detector” has also become a hot-solder product, mostly at a cost of several hundred dollars. From the product description, such portable detectors are suitable for radiation detection on the surface of objects or in air, water. However, portable radiometers sold online are more limited in performance and do not detect radionuclides in contaminated water. Therefore, they are not a universal detector。
A nuclear radiation detector sold online。
Nuclear radiation detectors are specialized, with different types of equipment of varying scope and limited scope. In addition, the detection of radiation doses requires the screening of different nuclides and ray types, and most subjects undergo complex pre-treatment processes。
Radiation-proof clothing, radiation-proof postage, etc
With the attention given to “radiation protection”, products such as radiation protection suits, radiation protection caps, radiation protection stickers, etc. Were accidentally caught on fire. However, most of the radiation-resistant clothing sold on the market was directed at non-ionizing radiation, which could not be prevented. Moreover, the quality of radiation-resistant clothing was uneven and even non-ionizing radiation had limited preventive effects。
Radiation-proofing clothing, radiation-proofing stickers, radiation-proof caps, radiation-proof blankets, etc. Are also thermal products。
Generally, radiation can be divided into non-ionizing and ionizing radiation。
Because of low energy, non-ionizing radiation, which is common in everyday life, does not require special prevention. For example, visible light, infrared, radiowaves, mobile phones, television, computers, microwave stoves, etc., can produce non-ionising radiation, as long as the normal use of these electrical equipment does not affect health or are deliberately “radio-resistant”。
The high energy of ionizing radiation, which causes human harm at a sufficient level of strength, nuclear fuel, radionuclides, x-ray detectors, medical video screening, tumour ionization, etc., are the main artificial sources of ionizing radiation。
In order to prevent radiological accidents, triple-leaf markings of ionizing radiation are widely used worldwide. The signs are generally attached to the overpack of radioactive material, to the radial device and to the workplace where ionizing radiation exists. If an ionizing radiation mark is seen, it is necessary to stay away from the site or to provide personal protection。
Ionizing radiation markers。
Ionizing radiation markers。
Cactus, green rose
In practice, no plant is immune to radiation, be it ionizing or non-ionizing。
The rays are transmitted along a straight line, either isolated by heavy metal material or diverted by a strong electromagnetic field. It is clear that there are no plants that can block, aggregate or divert the rays。
The business claims to have a “radio-resistant” function。
Only lead and other heavy metals are known to have some absorption and protection against radiation. Professionals are required to wear professional lead suits when entering nuclear contaminated areas, and the walls of the hospital radiology are also equipped with thick lead plates。
