fish tank water pump: the radiation reaches half of the national standard ★★★★★☆
put the instrument close to the fish tank glass closest to the water pump, and the maximum detected magnetic field intensity is 50 μ T, reaching half of the national standard. As long as the detector is five or six centimeters away from the fish tank, the radiation will instantly fall to a few tenths of a kilogram.
therefore, there is no need to worry about the radiation of the aquarium water pump, unless you enjoy fish with your head close to the aquarium all day.
hair dryer: small size, strong radiation ★★★
among household appliances, hair dryer radiation is relatively high. The data measured by Cheng Jing is that it is close to the hair dryer with a power of about 800 watts, and the data is 20 μ t. However, once five or six centimeters away from the motor, the radiation is only 1 μ t.
cordless telephone: it’s ok if it’s 5cm away ★★★
silent telephone detects a maximum power density of 15 MW / cm2. When the measuring instrument leaves 5 ~ 10cm, the data will fall below 1 MW / cm2. The national standard is 40 MW / cm2.
microwave oven: stay away from it when working ★★
everyone will worry about radiation caused by microwave oven leakage. The detection is close to the door, and the detected data is 5 ~ 10 MW / cm2. When the instrument is 10 cm away from the door, the detected data is 1 ~ 2 MW / cm2. The national standard of high-frequency electrical appliances is 40 MW / cm2. The maximum test result of microwave oven is only between 1 / 8 and 1 / 4 of the national standard.
microwave oven radiation will leak only when working. Therefore, if you stay away from it when working in the microwave oven, you will be protected from it.
high voltage tower: the harm is equal to coffee ★☆
pickles are not edible, but can not be eaten more. There is no final conclusion whether coffee is harmful or beneficial to human body. The World Health Organization lists them as “suspected” harmful to health, and the magnetic field harm of high-voltage power towers is also among them. The detected data show that the magnetic field intensity of the high-voltage tower is far lower than the national standard and can be ignored.
computer host: the harm of magnetic field is exaggerated ★
many people worry that the radiation of computer host is harmful to human health, especially pregnant people, who are far away from computers. When detecting radiation, it is close to the chassis, and its magnetic field intensity is only 1 ~ 2 μ t. People are worried about its radiation mainly because of psychological fear. In order to promote their products, businesses also exaggerate the harm of electromagnetic field to human body.
mobile phones: the strongest radiation. Wearing headphones is the safest ★★★★
. Among the tested objects, there are no less than 100 mobile phones, basically covering the brands on the market.
during detection, the instrument is close to the mobile phone from dialing to hanging up. The maximum detected power density is 400 ~ 800 MW / cm2, and the minimum detected power density is 3 ~ 5 MW / cm2. At present, there is no mobile phone radiation standard in China. Among all the items detected, mobile phone radiation is the largest. It is suggested that people use headphones to answer and make calls, and don’t make or make fewer calls when the mobile phone signal is bad.