Mobile phone virus and matters needing attention in disinfection of mobile phones

Mobile phones are indispensable in our daily life. No matter what occasion, we can always see mobile phones. But you know what? There are even more bacteria on the mobile phone than in the horse bucket, which increases our chances of getting sick. So how should we eliminate cell phone bacteria? What are the precautions for disinfection of mobile phones? Let's have a look.

Although it feels a little regrettable to say it, from a health point of view, please face up to the fact that there are 20 times more bacteria on the mobile phone than in the toilet seat.

Although you use a shiny, precision-made smart phone to operate everything every day, you would never think that the bacteria content of this smart device that follows you to eat, sleep and work every day has exceeded the standard. Therefore, smart phones are the cleanest personal belongings around us.

As early as 20 13, the personnel of R&D consumer organizations conducted a series of tests. They installed 30 applications on smart devices (smart phones, tablets) to simulate our usual use of mobile phones. After a period of normal use, it began to wipe, and it was detected that the user wiped the cotton pad of the mobile phone. The results showed that there were 600 Staphylococcus aureus on each cotton pad.

Why on earth can a small intelligent device hide so many dirty things? The test results show that although we do housework almost every day, few people specialize in cleaning mobile phones. And almost everyone neglected the cleaning of mobile phones before. Fortunately, however, the mobile technology industry provides us with a device that can focus on solving this problem. R&D team cooperated with Corning to develop antibacterial gorilla glass. The coating can kill 99.99% bacteria. In addition, a new patent of Microsoft can automatically disinfect the touch screen of smart phones and users' fingers through ultraviolet rays. Microsoft will be the first to use this technology on Lumia devices in the future.

Of course, for us now, we don't have to wait for those high technologies to avoid this. Only a pack of wet wipes or tissues can remove most of the bacteria on our smart phones.

Bacteria lurking on mobile phones

British researchers made a simple experiment-extracting bacteria from the surface of mobile phones and culturing them in Petri dishes for three days. Therefore, they can clearly see the appearance of bacteria that may exist on the mobile phone. Researchers and experts in Britain have also investigated the current situation of mobile phones in use and 30 mobile phone samples. The results show that among the 63 million mobile phones used in Britain, 6,543,800+0,470 mobile phones pose a health threat. In the investigated mobile phone samples, the total number of mobile phone bacteria in 1/4 exceeded the acceptable level 10 times.

65438+ 200,000 bacteria per square centimeter

In fact, there are many bacteria on the surface of our mobile phones, but most of them are harmless and common in daily life, but there are also bacteria that can cause diseases, such as Staphylococcus aureus. About 20% people are long-term carriers of this bacterium, which is often hidden in people's nasal cavity. People will bring this kind of bacteria to their mobile phones by sending text messages after picking their nostrils, and this kind of bacteria often causes bacterial food poisoning, purulent rash and even sepsis.

Jim Francis, a health expert who participated in the study, said that the bacteria on one of the prototypes carried a large number of Escherichia coli and Staphylococcus aureus, which was enough to make the user's stomach uncomfortable. He said that people don't want to touch the toilet flush handle with their hands because it feels dirty, but the bacterial content of the flush handle is actually much lower than that of the mobile phone. Because researchers have found that the amount of bacteria carried by a mobile phone may be 18 times that of the flush handle in the men's toilet-there are120,000 bacteria stationed in the mobile phone per square centimeter. According to this calculation, there are at least millions of bacteria in the whole mobile phone. This number can even make the bacteria on the toilet seat "shame".

Not every mobile phone user knows this result. Many consumers have little awareness of cleaning mobile phones, which intensifies the proliferation of bacteria on mobile phones. Experts say that if you don't pay attention to personal hygiene, mobile phones will also become "spawning bases" for insects such as bedbugs.

There are many ways of infection.

Bacteria can spread through many media, and insects, water, food and rain are common ways. Mobile phones are also one of them.

When making a phone call, the bacteria crawling on the surface of the mobile phone will inevitably rub on the face and other parts, which may lead to acne, pneumonia and meningitis ... Some women's skin acne may have a lot to do with frequent use of mobile phones contaminated by bacteria. Many mobile phone users still have the habit of talking on the phone while eating. Some couples often like to put their lips on the microphone to give their lovers a sweet kiss when they hang up, but they don't know that they are kissing their lovers, but they are all bacteria.

Based on the dependence of modern people on mobile phones, users may answer the phone, listen to music, take photos and play games when they are working, walking, eating or even going to the toilet, and the possibility of mobile phones being "infected" by bacteria is still greatly increasing. Under normal circumstances, putting mobile phones in places with serious bacterial infections such as cash and keys will also cause more serious "cross-infection".

The mobile phone will generate heat when working, which actually provides convenient conditions for the reproduction of bacteria. Although we can't tell with the naked eye, the ubiquitous dust accumulation has become the most real base for bacterial reproduction. Also, don't think that the gap in the fuselage is the ultimate destination of bacteria. Mobile phone screen, earphone data line interface, etc. They are all "hiding places" for bacteria.

Preventive measures cannot be completely eliminated.

It is necessary for mobile phone users to pay more attention to the cleanliness of mobile phones, although this can not completely eliminate the proliferation of bacteria on mobile phones.

When using mobile phones, try to avoid carrying other items, especially food, to prevent diseases from entering the mouth; Try not to lend your mobile phone to others to avoid cross-infection of germs; It is best to put the mobile phone in a special mobile phone case and place it separately from wallet, keys, cash and other items; Get into the habit of using headphones, at least avoid the contact between mobile phone and face and lips; Wipe the keyboard, screen and other parts of the mobile phone regularly with a medical alcohol cotton swab; If possible, you can also go to the mobile phone customer service department to clean it with ultraviolet or ozone.

Is it true that the phone case will release carcinogens? Don't choose too bright colors.

The investigation team's experiment found that the mobile phone case contains carcinogens-benzene and formaldehyde. As soon as the news came out, it was immediately reprinted by many media. In fact, in 20 13, the statement that "mobile phone cases contain super carcinogens" has been reported many times. The difference is that there was no experimental verification at that time, and most experts think this statement is somewhat exaggerated. Then, does the mobile phone case contain carcinogens, which will cause harm to the human body?

Carcinogens may come from additives in mobile phone cases.

According to the report at that time, in order to know whether the benzene in the mobile phone case exceeded the standard, some reporters also contacted the product quality supervision and testing institute, and some staff members said that the country did not have the testing standards and methods specifically for the mobile phone case, so it was impossible to judge the above problems.

Experts from occupational disease hospitals said that benzene is an organic solvent, which is colorless liquid at room temperature and has obvious fragrance. Benzene is mainly used in paint, printing, petrochemical, rubber and other industries in industrial production, and it does have certain toxicity and carcinogenic effect. However, products such as mobile phone cases are not pure benzene, but phenyl polymers, which are basically non-toxic and have volatilized when they leave the factory. Therefore, the use of such products in daily life has little impact on the body. At present, benzene poisoning basically only occurs in two situations: one is an acute poisoning incident caused by the leakage of high concentration benzene storage tanks; The other is that in relatively closed industrial workshops such as painting and printing, workers who have been in close contact with raw materials for a long time may suffer from chronic poisoning, but there is no clear scientific proof of this.

Some science and technology engineers said that at present, mobile phone cases are divided into hard shell and soft shell, and the main material of soft shell is silica gel, which is non-toxic; Hard shell is the most common mobile phone case at present. The main materials are PC materials such as polyurethane, polystyrene and carbonate. At present, it is widely used in household appliances and electronic products.

The main material of mobile phone case itself is non-toxic and colorless. However, in order to control the appearance color, anthraquinone dye will be added to the main material during the production process. In order to make the product meet different performance requirements, plastic additives such as plasticizer, anti-sticking agent, reinforcing agent and dispersant will be added. These additives are all toxic, but they only account for 0.0% of the main materials, and some of them will naturally volatilize after processing, with little toxicity.

Plastic mobile phone case is stable and non-toxic at room temperature, but with the increase of temperature, substances such as "benzene" and "aldehyde" in mobile phone case will become free and will be released into the air, which has certain toxicity. If it is a product produced by a regular factory in strict accordance with national standards, the proportion of toxic substances is very low, and the impact on the human body can be ignored. However, if it is a small workshop, in order to reduce the production cost, recycled inferior waste materials are used as raw materials or industrial plastics are used instead of daily-use plastics. The ingredients of main materials and additives are not guaranteed, which will have a certain impact on the human body, but there will be no obvious symptoms in a short time.

In a word, there may be little problem with the material of the mobile phone case itself, but the mobile phone case with pigments and various additives may be toxic and may evaporate with the increase of temperature.

The effect of harmful substances is more obvious in a closed environment.

In contrast, the investigation team's experiment was carried out in a sealed environment, and the high concentration of harmful gases collected was normal. However, in an open environment, whether the mobile phone case will also cause harm to the human body may require more experimental verification. Experts from Jiangsu Cancer Hospital also said that formaldehyde is indeed a carcinogen and may lead to leukemia. It has little effect on the body in outdoor or ventilated environment. If it is in a narrow space such as a bed, formaldehyde will cause harm to the human body.

It can be seen that the harmful substances volatilized from the mobile phone case should only cause harm to people in a relatively closed environment. However, Xue Kaixian, a researcher in the Molecular Biology and Genetics Laboratory of Jiangsu Cancer Hospital, also said that although they have not done experiments, there are no carcinogens such as formaldehyde in the mobile phone case. However, one thing to be reminded is that inferior mobile phone cases are definitely bad for your health.

Dong Jinshi, an environmental expert, also said in an interview that it is suggested that when purchasing such products, we should pay attention to avoiding those mobile phone cases with too bright colors as much as possible. First of all, don't be too bright, and be careful when it is particularly bright. The second is the news, which has a pungent smell, or smells disgusting, or chokes your eyes. Be careful. The third is to touch it by hand, which is too soft and faded, or it is irritating and smelly after touching it, or it is particularly hard and firm after touching it. Be careful.

Do you know the taboo of cell phone disinfection?

Disinfect the mobile phone-wipe it with a wet paper towel or alcohol cotton.

Professionals say that wiping mobile phones with children's wet tissues and alcohol cotton can have a good sterilization effect. Most wet wipes contain alcohol, which can penetrate into bacteria, absorb moisture from protein, coagulate protein of bacteria, and denature and precipitate protein, thus achieving the purpose of sterilization. Among them, the mobile phone should be wiped with a wet paper towel or alcohol cotton at least once a week. In addition, the reporter learned that some merchants in the market have introduced professional ultraviolet electronic equipment sterilizers, which can deeply scan and disinfect the surface of mobile phones through ultraviolet irradiation.

Daily maintenance-keep your hands clean and use headphones more.

In the survey, the reporter found that many people like to play mobile phones when eating, which is equivalent to not washing their hands before meals. The potential harm of mobile phone to health comes from frequent contact between mobile phone and hand: bacteria first spread from hand to mobile phone, and then from mobile phone to hand.

Some institutions detected 240 strains of 10 bacteria in 108 mobile phones, among which 39 strains were pathogenic Staphylococcus aureus. There are about1.20 thousand bacteria stationed in mobile phones per square centimeter, which is more than a doorknob and a shoe. The main pollution part is the key part of the mobile phone.

There are so many pathogens on a mobile phone. It seems that the regular disinfection of mobile phones can not be ignored.

If you want to use your mobile phone healthily, please keep in mind the following five tricks.

1. It is best to gently wipe the keyboard, screen and other parts of the mobile phone with a cotton swab stained with medical alcohol every week for sterilization, or you can go to the customer service department of the mobile phone for cleaning with ultraviolet rays or ozone.

2. Don't press the button while taking other items, especially don't take food, or get sick from your mouth.

3. Many people are used to putting their mobile phones, wallets, keys, bank notes and other items in a trouser pocket, which is easy to cause cross-contamination.

4. Using headphones during the call can reduce the radiation damage of the mobile phone, and can also make the mobile phone minimize the contact with the face and lips to prevent droplet infection.

5. Wash your hands often.

Believe it or not, our hands are the biggest home for bacteria and viruses. If you want your mobile phone to be as bacteria-free as possible, please follow the rule of washing your hands frequently.

Conclusion: From the above introduction, I think everyone knows that there are many viruses on mobile phones. Many of us keep mobile phones, which makes it easier for viruses to breed on mobile phones, and the case of mobile phones has also caused great health effects, so it is very important to disinfect mobile phones.