Is the microwave oven harmful to pregnant women? In daily life, microwave oven is one of the small household appliances. We often touch the microwave oven, so is it harmful to pregnant women? Whether his radiation will affect the fetus is a concern of pregnant mothers. Come with me to see if the microwave oven is harmful to pregnant women.
Is the microwave oven harmful to pregnant women? 1 microwave radiation
The electromagnetic radiation of the microwave oven has an effect only when it is working and close to the stove. Generally, when it exceeds 500mm, the influence of electromagnetic radiation is very weak. Microwave ovens only emit microwaves when they are working. When the oven door is opened, the microwave oven will stop working and there will be no microwave radiation in the oven. Scientists have done a lot of research for us and found the minimum microwave power that can harm human body. In an intact microwave oven, the leaked microwave power is far from harmful to human body-American regulations stipulate that the power per square centimeter should not exceed 5 milliwatts at a distance of about 5 cm from the microwave oven; China's standard is stricter, which is 1 MW. Moreover, the energy of microwave decreases according to the square of distance. In other words, if it is 1 milliwatt at 5 cm, it will be reduced to 1 milliwatt at 50 cm, which is more "harmless to people and animals".
You can use transistor radio to test whether there is microwave leakage in the microwave oven. When you hold the open radio from far to near and gradually approach the microwave oven, the electromagnetic interference of the microwave oven to the radio will become stronger and stronger. When the electromagnetic radiation of a normal microwave oven leaves the microwave oven for 500mm, the influence on the radio is very weak. If the distance exceeds 500m, such as 1 m, or even more, which still affects the radio, it means that there is microwave leakage in the microwave oven. The microwave oven will be sent for repair.
Through my sharing above, do you have a clear understanding of the harm of microwave ovens? Then in the later life, pregnant women had better not touch the microwave oven, so as not to hurt themselves because of unfavorable factors such as radiation!
Is the microwave oven harmful to pregnant women? 2 the harm of microwave oven.
First, microwave food produces carcinogenic compounds. Previous studies have shown that meat treated by microwave will produce carcinogens; Amino acids in milk, fruits and grains will also be converted into carcinogens after microwave; Plant alkaloids in vegetables can also be converted into carcinogens by microwave, which is harmful to our health. Some plastics may release some harmful components when heated. The US Food and Drug Administration (FDA) has determined the amount of harmful substances that various plastic containers may release into food during normal microwave heating. Only when this amount is less than 1% or even 1% of the harmful dose determined by animal experiments can it be marked as "microwave-heatable". Therefore, it is quite safe for those qualified plastic containers marked as "microwave heatable". If you are not at ease, you can also use ceramic or glass containers.
Second, the loss of food nutrition is serious. The food cooked by microwave oven will greatly reduce the minerals, vitamins and nutrients in vegetables, or become carcinogens.
Third, the body will secretly produce certain changes. Such as hormone imbalance, lymphatic and digestive system disorders, abnormal blood and immunity, depression, memory deterioration, permanent brain damage, and even lead to heart disease.
At the same time, if the microwave oven is used improperly, safety accidents will also occur. The following two types of accidents are the most common:
1, liquid overheating. When microwave heating, because water does not flow, but the temperature rises, it may "not open" when it exceeds the boiling point, leading to overheating. At this time, as long as the water is slightly disturbed, it will boil violently, which is prone to scald accidents. The cleaner the container and the cleaner the water, the greater the possibility of occurrence.
2. The egg burst. The microwave oven can't heat the eggs, because overheating inside the eggs will generate more pressure, which may explode if it is released by external interference.
microwave radiation
The risk of microwave oven pair lies in its heating ability, which will also bring harm to human body. Qualified microwave ovens reduce the leaked microwave energy through internal shielding devices.
Scientific research has found the minimum microwave power that does harm to human body, and based on this, the standard of microwave oven leakage power has been formulated. For example, the United States stipulates that the power per square centimeter should not exceed 5 milliwatts at a distance of about 5 centimeters from the microwave oven; China's standard is stricter, which is 1 MW. Moreover, the energy of microwave decreases according to the square of distance. Calculated as 1 milliwatt at 5cm, it will decrease to 1 milliwatt at 50cm. Therefore, as long as it is a qualified microwave oven product that is not damaged in use, it will not leak microwaves that can harm the human body.
Because microwave is a kind of radiation, there is a wrong view that it will cause cancer. In fact, microwave is an electromagnetic wave, which is essentially the same as radio waves, infrared rays and visible light used in radio and telegraph. The only difference between them is the frequency. The frequency of microwave is higher than electric wave, and lower than infrared ray and visible light. Electromagnetic waves in this frequency band are not carcinogenic.
Although it is also called "radiation", microwaves are different from radiation produced by X-rays and radioisotopes. The latter two are more dangerous ionizing radiation, while microwave belongs to non-ionizing radiation, and their risks are not the same. Although X-ray is also an electromagnetic wave, its frequency is much higher than that of microwave, so its energy is also high. Radioisotopes release particles during decay, so they can make organisms cancerous.
How to use the microwave oven
(1) Before using the microwave oven, please read the instructions provided by the manufacturer carefully, understand your microwave oven and accept the instructions.
(2) If the power supply is insufficient, the light in the furnace will appear dim. If you continue to use it at this time, it will damage the safety equipment and you should stop using it immediately.
(3) The microwave oven should be placed in a ventilated place, and there should be no magnetic substances nearby, so as not to interfere with the uniform state of the magnetic field in the furnace cavity and reduce the working efficiency. The microwave oven should be flat, away from fire and faucet. Do not cover the vents behind or on both sides of the furnace. It is best to keep a distance of at least 5 cm (2 inches) from the wall so that the hot air can be easily dissipated. Keep a certain distance from TV and radio, otherwise it will affect the visual and auditory effects.
If there is nothing in the microwave oven, don't use it. Because the emitted microwave cannot be absorbed, it will bounce back to the magnetron and be damaged. If there are children at home, or in order to prevent idling caused by carelessness, a glass filled with water can be built in the furnace cavity.
(5) When using a rotary microwave oven, the container for holding food must be placed in a special plate for the microwave oven, not directly in the oven cavity.
(6) Be sure to close the oven door and ensure that the interlock switch and safety switch are closed. After the microwave oven is turned off, it is not appropriate to take out the food immediately, so there is still residual heat in the oven and the food can continue to cook. /kloc-it's better to take it out after 0/minute.
(7) If the microwave oven door is sunken or damaged, it should not be used. Check the oven door and door lock regularly. If it is damaged or poorly closed, please stop using it to prevent microwave leakage. If it is found that the door hinge is not suitable, someone will repair it immediately. It is not advisable to put your face near the observation window of the microwave oven, so as not to hurt your eyes by microwave radiation. It is also inappropriate to be exposed to microwaves for a long time, so as not to cause dizziness, dizziness, fatigue, emaciation, hair loss and other symptoms, which will cause damage to the human body.
(8) Most microwave ovens have microwave inlets on the right side of the cavity, which are generally covered with mica sheets or plastic sheets. It must be cleaned regularly with a damp cloth (microwave oven 10 times is recommended), otherwise the food residue spilled on it will easily carbonize, causing microwave reflection and burning out the magnetron.
(9) Don't leave food scraps or oil stains at the crack of the door or the place where the door is opened, so that the oven door won't close tightly.
(10) The microwave oven should always be clean and dry. If there is moisture in the oven, its efficiency will be reduced, so try to dry it.
Taboos for using microwave ovens
(1) Avoid using ordinary plastic containers: First, hot food will deform plastic containers; Second, ordinary plastics will release toxic substances, pollute food and endanger human health.
(2) Avoid overtime heating: If food is thawed or heated in the microwave oven, if you forget to take it out, if it exceeds 2 hours, you should throw it away to avoid food poisoning.
(3) Do not heat the meat until it is half-cooked, and then put it in the microwave oven for heating: Because bacteria will still breed in the half-cooked food, it is impossible to kill all the bacteria when you put it in the microwave oven for the second time because the time is too short. Frozen meat must be thawed in the microwave oven before it is heated and cooked.
(4) Don't freeze the thawed meat in the microwave oven: because after the meat is thawed in the microwave oven, the outer layer has actually been heated at a low temperature, and bacteria can reproduce at this temperature. Although freezing can prevent its reproduction, it can't kill the living bacteria. If the meat thawed in the microwave oven is frozen in the refrigerator again, it must be heated until it is fully cooked.
(5) Avoid fried food: high-temperature oil will splash and cause fire. In case of accidental fire in the furnace, don't open the door, turn off the power first, and then open the door to cool down after the fire is extinguished.
(6) Avoid putting the oven in the bedroom: At the same time, be careful not to cover the cooling window grille on the microwave oven with objects.
(7) Avoid working in front of the microwave oven for a long time: After turning on the microwave oven, people should stay away from the microwave oven or at least 1 m away from the microwave oven.
(8) Avoid using the same socket with other electrical appliances: use a socket with a single power supply and a ground wire.
(9) Avoid heating the baby's milk in the microwave oven: because when the milk is heated unevenly, it is easy to burn the baby. In addition, it will destroy the nutrients of milk.
(10) Do not use the microwave oven to dry clothes or soften hardened nail polish: in case of fire.
(1 1) Don't take the food out of the microwave oven by hand: after heating, the container and lid often accumulate steam, which will absorb the hot air of the food and become very hot. Heat insulating gloves or mats should be used to prevent burns.
(12) It is not allowed to put anhydrous food into the microwave oven to make it work: it will damage the microwave oven.