What object around you has the strongest radiation?

When the instrument was placed close to the fish tank glass nearest the water pump, the maximum magnetic field intensity detected was 50 microteslas, which is half of the national standard. As long as the detection instrument is five or six centimeters away from the fish tank, the radiation will instantly drop to a few microteslas.

Therefore, there is no need to worry about the radiation from the fish tank water pump unless you spend the whole day watching the fish with your head close to the fish tank.

Hair dryer: small size, strong radiation ★★★★

Among household appliances, hair dryers have the highest radiation. The data measured by Cheng Jing is that, for a hair dryer with a power of about 800 watts, the data is 20 microseconds. But once it is five or six centimeters away from the motor, the radiation is only 1 microtesla.

Cordless phone: 5 cm away is fine ★★★

The maximum power density detected by the silent phone was 15 microwatts per square centimeter. When the detection instrument is 5 to 10 centimeters away, the data drops below 1 microwatt per square centimeter. The national standard is 40 microwatts per square centimeter.

Microwave oven: Keep away from it when it is working★★

Everyone is worried about radiation caused by microwave oven leakage. When testing close to the door, the detected data was 5 to 10 microwatts per square centimeter. When the instrument was 10 cm away from the door, the detected data was 1 to 2 microwatts per square centimeter. The national standard for high-frequency electrical appliances is 40 microwatts per square centimeter. The maximum test result of the microwave oven is only between 1/8 and 1/4 of the national standard.

Microwave radiation only leaks when it is working, so you can avoid being harmed by staying away from it when it is working.

High-voltage towers: as harmful as coffee★☆

It’s not that you can’t eat pickles, but you can’t eat too much. There is no definitive answer as to whether coffee is harmful or beneficial to the human body. The World Health Organization has listed them as "suspected" hazards to health, and the magnetic field hazards of high-voltage towers are also among them. The detected data showed that the magnetic field strength of high-voltage towers was far below the national standard and could be ignored.

Computer host: The harm of magnetic field is exaggerated★

Many people are worried that the radiation from computer hosts is harmful to human health, especially for pregnant women, so they should stay away from computers. When detecting radiation close to the chassis, the magnetic field strength is only 1 to 2 microteslas. The reason people worry about its radiation is mainly due to psychological fear. In order to promote their products, businesses also exaggerate the harm of electromagnetic fields to the human body.

Mobile phones: The strongest radiation, it is safest to use them with headphones★★★★★

Among the objects tested, mobile phones are the most numerous, with no less than 100 units, basically covering all brands sold on the market.

During the test, the instrument is placed close to the mobile phone from the beginning of dialing to the end of hanging up the call. The maximum power density detected is 400-800 μW/cm2, and the minimum power density detected is 3-5 μW/cm2. At present, there is no standard for mobile phone radiation in our country. Among all the objects detected, mobile phones have the highest radiation. It is recommended that people use headphones to make and receive calls, and avoid or reduce calls when the mobile phone signal is poor.