Since people know that cell phones, computers this type of household electrical appliances radiate occur, they are inexplicable sense of conflict its kind. But in fact it is not really radiation on human beings, and even lead to a lot of disease? Let us into the world of electrical radiation, to see what the experts think of this question!

First, the interpretation of electromagnetic radiation

As two elements to be considered together in an electromagnetic wave frequency electric and magnetic fields of RF and microwave. Watts / square meter (W / m2) in units of power density is a measure of the strength of these electromagnetic fields. Low frequency and high frequency electromagnetic waves to affect the human body in different ways. The main source of our life, low-frequency electromagnetic fields and electrical power supply, the daily source of radio frequency electromagnetic fields are mainly telecommunications equipment, broadcasting antennas and microwave.

Second, the biological effects of electromagnetic fields

Including electromagnetic fields, including the environment, many factors can cause biological effects, biological effects is not equivalent to health threats, the need for specialized research to identify and measure the health threat.

At low frequencies, external electric and magnetic fields induces a weak electric current circulating in the body. In almost all of the normal ambient conditions, the low intensity of the induced current in the body to not produce any significant effect. The main effect of radiofrequency electromagnetic fields is heating of human tissue - no doubt, even if short-term high-intensity electromagnetic field exposure, also harmful to health. But the public's concerns about exposure to electromagnetic field strength can cause severe physiological response under, focused on long-term effects on the body below the standard. Despite extensive research, there is no evidence so far to confirm the health impact of exposure to electromagnetic fields of low intensity.

Third, the electromagnetic field strength of household appliances

Family background electromagnetic field strength comes mainly from power transmission and distribution equipment, and home appliances. Electromagnetic field strength generated by various appliances will be significantly different. Electric and magnetic field strength will increase as the electrical distance decreases rapidly. In each case, the electromagnetic field strength of household appliances around is far less than the limits of safety guidelines. TV and computer screens in the normal use of distance, electric and magnetic field strength of only one ten thousandth to one thousandth of the safety standard value. Standard microwave oven is not a health threat.

Many surveys show that exposure to electromagnetic fields under daily living environment is very small. As long as the public does not close proximity to radar facilities, broadcasting antennas and mobile phone base stations, will not be exceeded safety guidelines limit radio frequency electromagnetic field. Phone radio frequency electromagnetic field strength than the daily living environment of other appliances are much higher, but even so the intensity showed no adverse health effects.

Fourth, no cell phone radiation hazards

Although the general public does not understand electromagnetism and biology, but still generally considered harmful cell phone radiation, which is an important basis for nuclear radiation and X-rays can harm human health, and prolonged exposure to large doses of posing a risk of cancer. However, this radiation and cell phone radiation are essentially different, the former is ionizing radiation, the radiation energy can be absorbed by the body tissue caused by a large number of bond breaking. The mobile phone radiation is non-ionizing radiation, which is far below the frequency of ionizing radiation, thermal effect is minimal, there is no risk of breaking chemical bonds to produce. In fact, even many years received more powerful non-ionizing radiation of low frequency waves, it would not damage health, domestic and foreign armies have a lot of high-power radio and radar, the frequency band covering cell phone radiation power ratio big phone thousands of times, on erecting a large antenna on the roof. Staff for many years at such a high intensity radiation environments of work, but also no reliable scientific report impaired health.