Cactus plants can mainly absorb harmful gases in the air (such as air pollution sources after decoration) and tiny particles suspended in the air, and can release oxygen at night (contrary to many other plants). You might as well put more plants in the room.
At present, plants that can absorb radiation mainly include chlorophytum, ivy, Parthenocissus tricuspidata and so on. You can put several pots in the computer room, but it is best not to put them in the bedroom.
Cactus or cactus is a good flower variety for beautification in courtyard greening. Although they are covered with thorns, they are beautiful in appearance, can be used for processing medicinal materials and eating, and have the "special function" of absorbing electromagnetic radiation and reducing the harm of computers to human health. The prickly body of cactus
The meat is thick and contains a lot of water, which is easy to absorb and dissolve electromagnetic radiation toxins in the surrounding environment, reducing indoor and outdoor pollution and benefiting human health.
Some gardening experts suggest that it is appropriate to put a few pots of cactus in the place where there is a TV, computer and microwave oven with electromagnetic radiation. Many large computer places abroad are full of cacti, large and small. This is an advanced scientific measure that can be used for reference.
Respondent: Anan Wuwuwuwuhua Exploration 1 1 Grade 7-2 1 2 1:58.
When the computer is in use, the display screen will emit electromagnetic and ionizing radiation. Often working in front of the computer will make human skin aging, cause rough skin, and even cause skin inflammation and other diseases. To prevent computer radiation, we should start from the following aspects: when purchasing computers, try to buy new health-care green computers, and generally do not use old computers. The radiation dose of the old computer is large, which is generally 1-2 times that of the new computer at the same distance and similar model. When operating a computer, it is best to install a computer-specific color filter on the display screen to reduce the harm of radiation, and do not place miscellaneous metal objects indoors to avoid electromagnetic waves from being emitted again.
There is no radiation on the mouse, keyboard and LCD screen. The radiation of rear projection color TV is low.
When the mobile phone is in standby, the radiation is small, and it is bigger when talking, but the radiation is the largest when the mobile phone number is dialed but not connected, and the radiation amount is about three times that of standby. Children's daily household appliances mainly have excessive power frequency magnetic field radiation, mainly manifested in hair dryers, vacuum cleaners, electric razors, fluorescent lamps, microwave ovens and so on. Moreover, in many cases, several electrical appliances may be used at the same time, and the magnetic field intensity between them is also cumulative during use. In some informal experiments, many people found the phenomenon of group radiation. "Group radiation will make the radiation frequency band very wide, which will increase the resonance between devices and the superposition of radiation energy. When the energy reaches a certain level, the human body will be affected by thermal effect (the higher the frequency, the more intense it will be), non-thermal effect (full frequency band) and resonance effect (when the wavelength is proportional to the scale of the organism). " If the long-term exposure exceeds the safe radiation dose, it will kill (even kill) human cells in a large area. Electromagnetic waves will also affect and destroy the original current and magnetic field of human body, so that the original electromagnetism of human body will change. This will interfere with the human body's ecological clock, leading to the disorder of ecological balance and autonomic nervous function, such as headache, fatigue, fatigue, excitement, memory loss, inattention, skin fever, hair loss, palpitation, arrhythmia, blood pressure disorder and so on.
Guard against electromagnetic radiation
Don't use all household appliances together.
If there is an application manual, please keep a safe operating distance according to the manual.
In any case, try to avoid long-term operation.
Keep the indoor air circulating.
When the appliance is not in use, it is best to turn off the power supply and don't let it stand by.
In the long run, this will not only save electricity, but also reduce trace radiation.
Accumulate.
One of the most effective preventive measures is to buy some protective equipment, which is necessary for housewives, pregnant women and people who operate computers for a long time.
Protective clothing: including coats, vests, aprons and maternity clothes. Made of special fiber, it has good anti-electromagnetic radiation and anti-static effect. Especially for families with microwave ovens, it is best to equip them with protective aprons, which can effectively prevent electromagnetic radiation. For pregnant women, if they come into contact with electrical equipment, they must wear protective Chinese-style chest covering or protective clothing to ensure the healthy growth of the fetus.
Radiation shielding: it has many functions such as radiation protection, anti-static, anti-glare and so on, and it also plays a certain role in protecting eyesight.
Another way is to pay attention to time and distance.
The degree of injury is proportional to time, that is to say, the longer the exposure to electromagnetic radiation, the greater the injury. Is inversely proportional to the distance, the distance is ten times larger, the radiation is one percent of the original, the distance is one hundred times larger, and the radiation is one ten thousandth.
Specific household electrical equipment protection is divided into:
First, the microwave oven
Vigilance index: ★★★★★★★
Microwave ovens use the thermal effects of microwaves to heat and cook food. Studies have shown that the strong electromagnetic waves generated by microwave ovens may cause diseases if they exceed the standard seriously.
Coping methods:
1. It is best to leave about one meter after the microwave oven is turned on.
2, often use the microwave oven to cook food, you can wear a shielded apron and a shielded jacket.
3. It is best to replace the microwave oven after 6 to 7 years of use.
Second, computers.
Warning index: ★★★★
Coping methods:
1. If you have to use the computer for a long time, you should pay attention to washing your face in time.
2. When using the computer, you should keep the correct posture, and the distance between people and the computer screen should be kept above 70CM.
3. The electromagnetic radiation intensity on the back and side of the computer is not less than the screen, and should be kept above 120CM.
4. Liquid crystal is less harmful to human body.
Third, TV sets.
Early warning index: ★
Coping methods:
1, TV sets should not be too concentrated with other electrical appliances, exposing themselves to the danger of excessive radiation.
2. The distance between TV and people should be at least 2 meters away and not too close to the screen.
It is best not to put TV and other electrical appliances in the bedroom.
In addition, it should be noted that reading books and newspapers in bed is a kind of life interest for many people. However, small household appliances such as radio, walkman and mobile phone are not suitable for bedside to avoid electromagnetic radiation.
Finally, if you are in the electromagnetic radiation source for a long time and feel unwell, you should find relevant departments for monitoring and testing as soon as possible to find out the radiation source. Avoid long-term injuries.
]: protection
Spear and shield of health countermeasures
As the saying goes, the Tao is one foot high and the magic is ten feet high. In view of the harmfulness of computer electromagnetic radiation, relevant professional organizations and computer manufacturers at home and abroad have started the work of protecting computer radiation very early. After years of efforts, aiming at the production and manufacture of electronic products such as computers, we have formulated a number of strict certification standards such as MPR, TCO, FCC and UL from the aspects of radiation, energy saving, environmental protection and ergonomics to ensure that human health will not be harmed. At the same time, the so-called "green computer" with energy saving, environmental protection and no radiation has appeared in recent years.
At present, active protection and passive protection can be taken against the harm of computer electromagnetic radiation. Passive protection method, that is, in addition to improving the working environment and paying attention to the use method, measures such as providing radiation protection clothing, radiation protection screen, radiation protection curtain and radiation protection glass are taken. For people who often touch and operate computers, to reduce or eliminate the harm of electromagnetic radiation; The active protection method starts with the "source" of computer electromagnetic radiation, such as monitors and cabinets, and eliminates or shields it.
First, purchase, that is, choose and buy products that meet the "green computer" standard from powerful manufacturers in the market; The second is DIY, that is, buying "green" computer accessories that have passed various certification standards to build your own healthy computer. Below we will focus on how to choose accessories that meet the radiation protection standards to DIY healthy computers.
The working imaging principle of CRT display determines that it is difficult to completely eliminate the harmful radiation it emits in use. In order to minimize the intensity of harmful radiation and protect the health of users, international authoritative organizations have successively issued a series of certification standards for electromagnetic radiation protection of electronic devices such as displays, from the initial MPR Ⅰ (1987), MPR Ⅱ (1990) and TCO'92( 1992) to the latest TCO'. Strict standards have been set for the radiation, energy saving, environmental protection and ergonomics of monitors. Only products that comply with the latest relevant standards in design, manufacturing and finished products can be called "green" displays.
At present, there are nearly 20 certification standards related to monitors. Among them, the famous certification standards are MPR of Swedish National Bureau of Metrology and Testing, TCO series of Swedish Professional Employees Union (TCO), EnergyStar of US Environmental Protection Agency (EPA), FCC of US Federal Communications Commission (FCC) and the latest 3C of China. The following focuses on understanding and mastering the common certification marks on several monitors.
1987, the Swedish Bureau of Surveying and Mapping, which was certified by MPR Ⅱ, put forward the earliest standard-MPR Ⅰ, about the influence of electric field and magnetic field radiation on human health. On this basis, 1990 is extended to MPRⅱII, which more strictly limits the magnetic field intensity generated by the display in use, and provides the display standard of 2 1, including flicker, jitter, linearity, brightness, reflectivity and font size, and puts forward the greatest restrictions on the ultra-low frequency (ELF) and very low frequency (VLF) radiation of the display. MPR standard has become a strict electromagnetic radiation detection standard recognized worldwide. At present, except for a few cheap products, most of the monitors on the market meet MPR Ⅱ Ⅱ specifications.
TCO Series Certification Swedish Professional Employees Union (TCO) starts from 1992. On the basis of MPR, higher requirements and stricter standards are put forward for the ecology, energy, emission and ergonomics of electronic devices such as displays, and it has gradually evolved into a worldwide scope, including TCO' 92/. Among them, TCO'92 is aimed at displays, including electromagnetic radiation, automatic power off, providing electricity consumption data, and meeting fire prevention and electricity safety standards; TCO'95 has increased the requirements for environmental protection and ergonomics on the basis of TCO'92, and emphasized the standards of low electromagnetic radiation and low magnetic field radiation, covering the display, keyboard and system unit. TCO'99 further puts forward stricter and more comprehensive standards for environmental protection and user comfort, and also puts forward specific provisions for the design of keyboards and notebook computers. As the fourth generation TCO certification standard, TCO'03 is better than TCO'99 in the aspects of monitor ecology, energy, radiation and ergonomics, and has become the most comprehensive and stringent certification standard for the new generation of high-quality monitors in the world.
FCC Certification The Federal Communications Commission (FCC) is an organization that tests electromagnetic wave signals and electronic equipment. The FCC certification issued by it mainly formulates electromagnetic specifications to limit the radiation noise of digital equipment and switching power supply. FCC certification is divided into two grades: A and B, and the technical requirements of Grade B are more stringent. Among them, Class A products produce strong electromagnetic waves, which will interfere with radios, televisions and other electrical appliances, so they are not suitable for home use but can be used in offices and other places; Class B products mean that the generated electromagnetic waves are relatively weak and will not interfere with signals such as microwaves, so they can be used in homes or offices, such as personal computers or telephones.
CCC Certification CCC is the abbreviation of "China Compulsory Product Certification", which is the symbol of compulsory product certification recently implemented in China. At the same time, 3C certification is a combination of CCEE (Electrician), CCIB (Import and Export Quarantine) and EMC (Electromagnetic Compatibility) certification, which respectively set comprehensive standards for electricity safety, electromagnetic compatibility, radio interference and stability. All products listed in the compulsory product certification catalogue implemented by the state must be certified by a certification body designated by the state, and can only be sold, imported and used in business activities after obtaining relevant certificates and affixing certification marks. 3C logo has two versions: CCC (S) and CCC(S).