It is not fierce that the harm of internal electromagnetic radiation in automobiles is exaggerated

Guangzhou Daily reported on February 20th, 2012, that a post about a hot-selling car “intra-vehicle electromagnetic radiation is far beyond the substation” has attracted attention. What is the harm of electromagnetic radiation in the end? Where does electromagnetic radiation exist? How to avoid being hurt by electromagnetic radiation in daily life? A few days ago, Xu Jie, director of the Center for Physical and Chemical Analysis of the Chinese Academy of Sciences, told the newspaper that there was radiation in areas where electricity was available, but it was not as terrible as people thought. “In fact, the electromagnetic radiation in cars is mostly lower than household electrical appliances.” Xu Jie According to the disclosure, the number of vehicles detected by the center is far lower than that of electric appliances such as hair dryers and induction cookers.

Radiation Source: Where there is electricity, radiated electromagnetic radiation is a substance that exists in a special form that cannot be seen or touched. The earth that human beings live in is a large magnetic field. The thermal radiation and lightning on its surface can generate electromagnetic radiation. The sun and other planets also generate electromagnetic radiation from the outer space. Natural magnetic fields, sunlight, household appliances, high-voltage power transmission lines, etc., which surround human beings, emit electromagnetic radiation of different intensities outwards. Wherever there is electricity, there is radiation.

As more and more electronic devices are used in automobiles, they inevitably bring radiation sources, but in comparison, they are still relatively safe. Xu Jie also said that in-car navigation, radio and other equipment may generate radiation. In daily life, the source of radiation is more about home appliances, and the radiation of a car is far less than the small mobile phones commonly used by people. Research by WHO shows that the electromagnetic radiation emitted by the mobile phone at the moment of connection is the largest. Therefore, it is best to take the mobile phone a little further, wait until the mobile phone is connected, then take a closer look, or wear an anti-radiation headset to answer the phone.

Absence: There is no limit on the frequency of electromagnetic radiation in the public environment of the relevant national standards. Since the 1990s, China has adopted the 0.1mT recommended by the International Radiation Protection Association. In sharp contrast to this is a more stringent standard in other countries - the UK National Radiation Protection Commission's official website has set the dangerous value at 0.4μT (4mG). It is internationally recognized that the magnetic field strength in children's living environment should not exceed this. Standards; Sweden is the first country that believes that electromagnetic radiation intensity is above 0.2μT (2mG) will be harmful to the human body.

The International Non-Ionizing Radiation Protection Committee (ICNIRP) stipulates: “In the area of ​​2 meters outside the electrical appliances, residents are safe within 1.00mG milligauss.”

Xu Jie also said that in fact, the country does not have a recognized standard, so the general public is difficult to grasp. An entire vehicle factory staff revealed to the captain that there is currently no mandatory standard for electromagnetic radiation in the car industry. General car manufacturers will not specifically detect the radiation emitted by the vehicle’s electrical equipment when producing automobiles. .

Glossary: ​​What is electromagnetic radiation?

Electromagnetic radiation (electromagnetic radiation): also known as electronic smoke, is composed of electrical energy and magnetic energy that are jointly transferred by space, and this energy is generated by the movement of charges; for example, the mobile electric energy emitted by a radio frequency antenna that is transmitting signals. , it will produce electromagnetic energy.

The most effective measure: drive less "For the radiation in the vehicle, there is actually no effective protective measure. The best way is not to drive for a long time, so as to reduce the contact with the vehicle radiation source." Xu Jie said, "Drive through the radiation suit Not really realistic! Reduce radiation depends on the consciousness of the auto manufacturers."

Of course, some people also propose to put on radiation-proof clothes and radiation aprons in the car; there are standing radiation protection cards in the car; in addition, in the daily production, more foods rich in vitamin A and protein, such as carrots, cabbage, and tofu, are added. Milk, eggs, animal liver, lean meat, etc.

In addition, after-sales service personnel also said that the owner can also be used to car noise treatment car, in the reduction of noise treatment in the car, but also can effectively reduce the radiation inside the car. For pregnant women, children, and the elderly, sitting in the back of the car is safer, both in terms of safety and radiation protection.