Mothers don’t need to wear radiation protection clothes

The business club reported on January 17th that there is no such thing as a discussion of good or bad things, because it has no problem in itself, and your choice is the problem. This winter seems to give an answer when people wear maternity suits to protect their babies. The lack of understanding of electromagnetic radiation directly leads to misjudgment of the functions of radiation protection suits. Therefore, only scientific and reasonable understanding of cognitive electromagnetic radiation can scientifically protect people from panic attacks.

- Using exposure limits to determine whether it is necessary to protect special populations such as pregnant women from wearing radiation suits is a point of contention. It is understood that the electromagnetic environment in which human beings are located is very complicated. In addition to the sources of natural electromagnetic radiation, there are numerous sources of man-made sources. Man-made radiation sources are classified into closed sources and open sources. Closed sources can be reliably closed to prevent damage to the human body. Open sources can be properly set up to prevent human body damage. The determination of the need for protection must be based on exposure limits. Protective clothing should only be used when the electromagnetic field strength is above the exposure limit. Due to the harm of electromagnetic radiation, there is no serious ionizing radiation such as nuclear radiation, X-rays, etc. Therefore, the “exposure limit” rather than the “irradiation limit” is used to describe the electromagnetic radiation limit.

So, what is the current electromagnetic environment in China? After conducting a large number of electromagnetic environment measurements, the environmental monitoring unit concluded that the public environment includes the Regulations on the Protection of Electromagnetic Radiation (GB 8702-88) and the Guidelines for the Management of Radiation Environmental Protection - Methods and Standards for Environmental Impact Assessment of Electromagnetic Radiation (HJ/ (T10.3-1996) and other national or departmental standards of supervision, any construction projects with electromagnetic radiation properties must be subject to electromagnetic radiation monitoring and electromagnetic radiation environmental impact assessment, in line with environmental protection requirements can be constructed. Therefore, public environmental electromagnetic fields generally do not exceed the standard, and the public environment is actually very safe.

According to Dr. Shi Wei, senior engineer of the Institute of Military Equipment Research of the General Logistics Department, in China's limit standards for electromagnetic exposure, factors that need to be strengthened for protection of the elderly, pregnant women, and children have been fully taken into consideration, and the exposure limit has taken a smaller value. That is, it is only allowed to live under a lower electromagnetic field strength than professional personnel. In most cases, the environmental electromagnetic field monitoring value is far from the exposure limit, so it is not necessary to wear protective clothing to protect the safety and health of the human body.

For the working environment with strong electromagnetic fields, the inspection should be strengthened. According to the degree of electromagnetic field intensity exceeding the standard, according to the national exposure limit standards, it should be determined how much shielding effectiveness of radiation protection clothing should be used, so that the strength of the electromagnetic field around the human body in clothing is lower than the national regulations. Exposure limits.

- China has a clear standard of protective clothing for electromagnetic radiation. There is no standard. This is another focus of the radiation suit incident. At present, China has a clear standard - "GB/T 23463-2009 protective clothing, microwave radiation protective clothing", this standard specifies the basic conditions need to wear protective clothing and protective clothing performance requirements.

It is understood that starting from 2007, the Institute of Military Equipment Research of the General Logistics Department has assumed the task of compiling the "Electromagnetic Protective Clothing for Protective Clothing" standard. On April 1, 2009, "GB/T 23463-2009 protective clothing for microwave radiation protective clothing" was released and implemented on December 1, 2009.

Prior to the introduction of this standard, there were only two standards for electromagnetic radiation protective clothing in the world: one was MIL-C-82296B-1984 "Working Microwave Radiation Protection Workwear". The original American military standard appeared in 1976 but was repealed in 1990. The other is Germany's DIN 32780-100 2002 "protective clothing part 100 frequency range of 80MHz to 1GHz electromagnetic field protection requirements and test methods", which is also an international standard for electromagnetic radiation protective clothing.

- Radiation protective clothing shielding all radiation unrealistic Radiation protective clothing is effective? Dr. Shi Yong confirmed through professional inspection tests that even if a flexible shielding material with a shielding effectiveness of 70 dB is used as a raw material, the shielding effectiveness will generally be greatly reduced after being made into a garment. The protective effectiveness of the protective clothing of the overalls style is only 20~ 30 decibels; Otsuka styles are even lower.

Because the garments have structural openings and holes, even the collars, cuffs, slits, and even the presence of holes in the coveralls of the high collar, waistband, and closing style will allow the pervasive electromagnetic waves to enter the interior of the garment. For the existing radiation protection suits for pregnant women, the coverage area is limited, not to mention the airtightness, and the protection effect is very limited when they are actually exposed to strong electromagnetic fields.

- Three Principles of Radiation Protection Science Dr. Shi told reporters that nuclear radiation protection must follow three principles: justification of radiation practices, optimization of radiation protection, and limitation of individual equivalent doses.

For electromagnetic exposure, this principle should also be consulted. That is to say, the public should not go to professional places that should not go; professionals who must go to work should do the most reliable protection; if it cannot be reliably protected, they should be limited to a certain dose, and if they reach a certain dose, they cannot work continuously. Nuclear radiation is so protected that the human body in electromagnetic fields should be protected as such.