The harm of mobile phones on the body (Habitat, Invisible Enemy.)
Any one of us is exposed everywhere and everywhere to the harmful effects of the environment: household items, GMO products, all sorts of technological innovations. Unfortunately, it is beyond the power of producers to completely exclude the aspect of "harmfulness" at the present time. Some do not have enough resources for this, and some simply do not have the desire and the need for it. Nevertheless, such moments do not stop the modern user in his desire to join the progress. Therefore, then there is no point in worrying about the harmful impact of a product, or a gadget (in particular, a Chinese mobile phone).
Today, the "roaming" opinion on the Internet that Chinese phones are especially harmful, has no actual confirmations and sober arguments. The experience of millions of sales and the recognition of customers around the world - the opposite is proof. In addition, any mobile phone, if non-observance of the elementary rules of operation, can be harmful to human health and here it is not the manufacturer.
It does not make sense at this time and an ingrained stereotype about the "dubious quality of Chinese products." Chinese phones, as well as computer equipment, monitors, scanners, laptops comply with all the quality standards established in Europe and the US. In recent years, the Chinese government has been scrupulously (to put it mildly) referring to its reputation as an exporting country. Manifestations of such scrupulousness can be called increased quality control, as well as tougher penalties for the production and sale of low-quality products.
So, if you buy the phone is not "from under the floor", but quite legally, making sure that your purchase has all the necessary certificates, and your seller - the right to sell this product (by the way, our online store is all it has), then the "made in China" product label is not a negative selection criterion, but a real opportunity to purchase a quality product at an economical price.
Radiation emitted by mobile phones
Given the principle of mobile phones, they must emit a small amount of electromagnetic radiation. Mobile phones transmit signals over radio waves, which consist of radio frequency (RF) energy, which is a kind of electromagnetic radiation.
Every time more and more people raise the question of whether radiating mobile phones emit radiation that can be detrimental to human health. The main stone in the mobile phone flies due to the fact that during a conversation it must be kept near the ear, and accordingly close to the head, i.e. there is a direct effect on the human brain and radiation affects the tissues of the head. It is impossible to answer this question unequivocally, since the evidence supports both sides of this argument.
In this article, we will try to answer this controversial and troubling issue for millions of people, we will talk about how mobile phones radiate radiation and how to measure their radiation level.
Source of radiation
During a conversation on a mobile phone, the transmitter encodes the voice of a person's voice into a continuous sine wave. A sine wave or a harmonious wave is all just a kind of continuously variable wave that emanates from the antenna and evenly passes through the air. Therefore, the sine wave is measured in units of frequency measurement, i.e. how many times the wave oscillates up and down in a second. As soon as the encoded sound hits the sine wave, the transmitter sends a signal to the antenna, which in turn passes it on.
In all mobile devices, low-power transmitters are built-in. In machine mobile phones, the transmitter power is 3 watts. In ordinary mobile phones - only 0.75 - 1 watts. Typically, mobile device manufacturers can install this transmitter anywhere, but in most cases it is placed near the antenna of the phone. All radio waves that send an encoded signal emit a small amount of electromagnetic radiation, which is also amplified by the antenna. The main function of the antenna in any radio transmitter is to transmit radio waves into space; As for mobile phones, these waves are picked up by the receiver of the mobile network tower.
Electromagnetic radiation is formed due to waves of electric and magnetic energy moving at the speed of light (according to the Federal Communications Commission). All electromagnetic energy falls on the electromagnetic spectrum, ranging from an extremely low frequency of radiation to X-rays and gamma rays.
Talking on a mobile phone, most users lean it directly to the head, resulting in a little radiation can penetrate into the human brain tissue. Further we will consider, why scientists consider mobile phones harmful for our health, and what harm they can cause to the person.
Potential health risks
In the late 1970s, many people raised the issue of the effect of magnetic fields produced by the power lines that caused leukemia in children. However, conducted epidemiological studies have not revealed any relationship between the development of cancer and power lines. But nowadays the question of human health is again, because people use mobile phones every day, which emit, even small, but still radiation. Studies do not allow a final and exhaustive conclusion, since they contradict each other.
As you know, all mobile phones emit a certain amount of electromagnetic radiation. Given the direct proximity of the phone to the head, there is a risk that radiation can harm the tissues of the human brain. Therefore, scientists and politicians are debating about what level of radiation is dangerous, and whether mobile phones have a long-term effect of radiation.
There are two types of electromagnetic radiation
Ionizing radiation - this type of radiation contains enough electromagnetic energy to separate atoms and molecules from tissues and change chemical reactions in the body. Two forms of atomic radiation are gamma rays and X-rays. Both these forms are very dangerous for a person, you can protect yourself from these rays only if you wear a lead vest.
Non-ionizing radiation. Basically, non-ionizing radiation does not pose a great danger to humans. As a result of this radiation, a certain thermal effect is observed, but this is usually not enough to damage the human tissue. Non-ionizing radiation is radio frequency energy, visible light and microwave radiation. According to the data of the department for human health and environmental protection, "the conducted studies did not reveal the harmful effects of mobile phones on the state of human health". However, this does not exclude the possibility of causing little harm. "High radio frequency radiation can still damage human tissue," the Federal Communications Commission said. Radiofrequency radiation can warm up the human tissue in the same way as microwave ovens heat food. Damage to tissues can occur under the influence of high-frequency radiation, because the body is not able to quickly dissipate excessive heat. The eyes are especially vulnerable, because there is a very low blood flow in this area.
Every day there are more and more new mobile phones and new users, so scientists and lawyers are concerned about the possible risk of deteriorating people's health and are trying to find ways to prevent it.
In addition to the emitted radiation of telephones, people are also concerned that this radiation can have a lasting effect on a person and constantly accumulate in the body. And even if mobile phones do not exert much influence on the tissues during the conversation, the scientists still believe that the radiation emitted by mobile phones can accumulate in the body for a long period of time and then exert its influence. Especially this issue has become acute in our time, as more people start using mobile phones. For example, in 1994, 16 million people used mobile phones in the US, in June 2001 this number increased to 118 million.
Radiation of mobile phones can cause disease
- Tumors of the brain
- Alzheimer's disease
- Parkinson's disease
The studies carried out only confuse this issue. As in many controversial issues, various studies yield different results. Some experiments show that mobile phones are the first sources of cancer and other diseases, while other studies show that mobile phone users do not risk their health more than the general population. However, so far no research has confirmed that it is the mobile phones that lead to all of the above listed diseases.
If you are very worried that a mobile phone can harm your body, we advise you to adhere to the following rules:
- try to talk on the headset, thereby you free your hands and avoid the impact of mobile phone radiation on the brain tissue;
- Use phones that have antennas removed as far as possible from the ear;
- try to call as little as possible indoors;
- try to use the phone only in the fresh air;
- Do not allow children to play with the phone.
"At a very high level, radiofrequency energy can quickly heat up biological tissue and cause harm, for example, cause a burn," states the GBKU, the Main Budget Control Office (USA). However, this department assures that mobile phones operate at a very low level, and therefore are not able to exert such an impact. The amount of radiation emitted by these devices is minimal and therefore practically not felt, besides the government of many countries set standards for the permissible radiation radiation standards in mobile phones.
Checking devices for radiation radiation
-Any model of a mobile phone before it enters the market must undergo special testing. As a rule, testing is carried out by the manufacturer, but one can not always rely on the honesty of one or another mobile phone manufacturer.
The irradiation limit is calculated from the calculation of the maximum thermal effect of radio-frequency energy. In 1996, the Federal Communications Commission (USA) set a general radiation limit for many mobile phones. Later, the Federal Communications Commission published the basic principles of testing, with the help of which manufacturers could determine the exposure limit, i.e. irradiation.
-The radiation level is determined on the basis of a specific absorption rate (SAR), thanks to which it is possible to measure the amount of radio-frequency energy absorbed by the human body. In order to obtain a license from the Federal Communications Commission, the maximum level of the SAR phone should not exceed 1.6 watts per kilogram (W / kg). In 2000 in some countries of the world the government obliged manufacturers of mobile phones to stick on phones labels with the level of radiation radiation.
There are a variety of methods for measuring radiation, but as a rule, in every country in the world there is one single standard. For example, in May 2001 the GBKU published a detailed instruction on how to measure SAR levels.
Radiation should be measured as follows:
- The mock-up in the form of a human head and trunk is filled with a liquid mixture specially designed to simulate the electrical properties of human tissue.
- the test mobile phone is installed from the outside of the layout.
- A sample attached to a computer-controlled mechanical hose is placed in this mixture in various positions.
- include a telephone so that it starts transmitting signals to full power, while the sample is moved in this mixture.
During the test, pull out the phone antenna to check the fluctuation of radiation in different configurations. The Federal Communications Commission manufacturer must submit the highest level of SAR received during the test.
Therefore, if you want to know the specific rate of absorption of your phone, you can visit the website of the Federal Communications Commission. All mobile phones listed in the Federal Communications Commission's database have their own identification code. Enter this code in a special input line, and you will get all the information about your phone.
Until now, the question remains as to whether mobile phones bring any harm to the human body. Studies consistently yield different results. Therefore, it is not yet known what risk millions of mobile phone users expose themselves to and how this may affect them in the future.
About Chinese copies of mobile phones
Today, Chinese copies of mobile phones are so widespread that you can certainly not knowing if you will buy it. But how to say the demand generates a proposal - at every corner offer to buy a Chinese counterfeit, it concerns both the Internet and real. The market is just teeming with fake smartphones, communicators, etc. And the quality of them is very diverse.
Do not scare the Chinese neither high technology, nor the original brand design - to forge learned almost everything. But all the same you can certainly distinguish them. First of all, forge brands: Nokia, Samsung, Sony Ericsson, iPhone and others.
Chinese counterfeits are very low cost, and sometimes - still quite similar to the original. In this article, we consider the main features by which you can distinguish the original from the Chinese counterfeit.
Have you ever held in your hands the original Nokia device? Its weight is at least impressive. If you buy a Nokia smartphone, and it seems to you unusually easy, then most likely it is a fake. It is still very easy to distinguish the original phone from the Chinese counterfeit by the quality of plastic. Firstly, the original case is pleasant to the touch. Secondly, high-quality plastic has high strength. Therefore, when pressed, there should be no cod.
The original mobile phone has all the details of the case clearly adjusted to each other, nothing is not going anywhere. When you press the keys of these devices, a clear and simultaneously deaf sound. All stickers in the sale must be both qualitative and qualitatively glued. As for the clamshells, there should be no obstacle and creaking when opening and closing the device.
You can also distinguish the "left" mobile phone from the battery. On there is a glossy sticker. Thus, when it is illuminated with ultraviolet, the yellow bands are clearly visible. Sometimes it's enough to turn on the phone camera to understand that it's not real. The originals now do not produce cameras with a resolution of 0.3-megapixel camera, only be careful - on the case and in the instruction can be written and 5.0-megapixels.
If the communicator with a touch screen, then, unlike the original, many functions that can be performed (for example, turning and enlarging a photo using the finger method) will be inaccessible. Another feature of Chinese counterfeits can be identified support for two SIM cards, on the body of the devices is often the name of the company with errors - Wotorola, iFone, Nokla, Nckia, Veptu, Suny Ericssun and others.
As for the accompanying documentation and the internal stuffing of the phone, it's still more interesting here. From the documentation I especially want to highlight the so-called "User's Guide", not only that in broken Russian, so perhaps one more (in terms of content) for all Chinese counterfeits. Also pay attention to internal Russification, because there are often frequent mistakes.
Almost all the untrue Chinese phones operate on the MTK platform (MediaTek Inc. Taiwan), which is used in Fly mobile phones. So you will have at your disposal an internal memory right up to one megabyte . And instead of supporting modern applications and programs - the lack of or very weak support for Java and many more glitches in addition. And even an incredible joy in the loss of this "mobile technological perfection" .
If you do not want to try on yourself all the charms of Chinese fakes, before buying a phone at least look at this model (if it exists at all) on the official website of the manufacturer.
About the harm of radiation from mobile devices
Sometimes it seems that today all products are manufactured in China. Of course, most middle-income people prefer Chinese products because of their cheapness, but they usually do not pay attention to the fact that they buy goods that are hazardous to health.
This year, dozens of American cats and dogs were poisoned by Chinese food. In Panama, at least 94 people were killed curing Chinese cough syrup. Chinese car tires are torn to shreds on American roads. And what a delight - Chinese children's toys, made of toxic materials, deadly to health. And this list can be continued indefinitely.
The Chinese government does not keep up with the development of Chinese production, it does not have clear tools for tracking the quality of manufactured goods. At the same time, European countries and the United States of America do not have strict laws for checking imported goods. In fact, it turns out that no one controls the quality of imported goods. Interestingly, Chinese phones are as life-threatening as Chinese toothpaste?
At first glance, a toxic toothpaste can do more harm to a person than a mobile phone, we do not take it into our mouths. The production of a conventional mobile phone uses heavy toxic metals, such as lead and beryllium, as well as hazardous substances, such as cadmium and bromide. The technology of safe use of these substances in the production of mobile phones is too complex and expensive.
Major phone manufacturers, of course, spend money on the introduction of safe technologies. In addition, the safety of products is monitored by both the government and organizations that protect consumer rights.
Unfortunately, in China there is no such strict control. Recently, the media reported that the inspection conducted in China by mobile phone manufacturers showed that 80% of the chargers and 40% of the batteries do not correspond to the norm. For the past two years, at least six mobile phones have exploded in China. Last month, one person even died from a phone explosion. It is said that this was the phone of Motorola, but most likely it was one of those phones that are successfully forged in China, or it had a Chinese battery.
In addition, there is a problem of increased radiation background of Chinese products, including telephones. Sometimes checks reveal a serious excess of the norm.
In the United States, as in European countries, buyers are offered a huge number of different devices from Europe, Korea, Japan and other countries, and of course, most of these devices use Chinese parts. But self-respecting manufacturers carefully check all the components. Therefore, the quality of goods of large companies can be calm, even if they cooperate with Chinese companies.
But now the Chinese mobile phone manufacturers are actively trying to break into the American and European markets with their products and some even succeeded, for example, Alcatel Mobile Phone and Haier Group.
As for counterfeit phones, they are even more risky. It is not known what the phone will cost to the buyer, purchased on the occasion for $ 100. Maybe it will explode in front of him, cause cancer or damage the brain. This can only be learned from newspaper news.
What can I advise potential buyers of Chinese phones? Only one thing is to wait with a purchase until the time when someone checks their quality and safety