"Where is the toilet?" Many people have probably been asked this question. As the saying goes, "There are three urgent things for people". Going to the toilet is an indispensable thing for everyone. According to data, each person visits the toilet about 2,500 times a year. In order to more conveniently solve people's toilet problems, the number of public toilets in cities and counties in my country has reached 370,000, including parks, scenic spots, shopping malls, public institutions, roadsides, stations, etc.
In public toilets, we generally believe that only toilets have more bacteria, but in fact, in addition to toilets, there are two commonly used items that are very dirty, namely hand sanitizer and mobile phone drying, which are very likely to make your hands "The more you wash, the dirtier it becomes! What the hell is going on? Come on, follow the passers-by and listen to the passers-by.
How dirty are the hand sanitizer and mobile phone dryers in public toilets?
First of all, let’s talk about hand sanitizer. In 2013, CCTV Finance "Is it true" column conducted an investigation into hand sanitizer in public toilets. The reporters respectively went to many shopping malls, restaurants, and airports in Beijing. Samples were taken with sterile bags, and then sent to the Comprehensive Testing Center of the Chinese Academy of Procuratorial Sciences for testing.
According to the provisions of hand sanitizer in the "Light Industry Standards of the People's Republic of China", the total number of colonies in hand sanitizer should be less than 1,000. One week later, according to the test report, most of them exceeded the standard. For example, the number of bacteria in a shopping mall in Dongzhimen, Beijing is 1,300 per gram, while the number of bacteria in a restaurant on Qingnian Road in Beijing is 1,900 per gram.
But this is not the most serious. The most serious thing is the hand sanitizer of Capital International Airport . The number of bacteria reaches 600,000 per gram, which is 600 times the national standard!
What is this concept? can be said to be "washing hands with bacteria". This way, not only will the hands become dirtier as they wash, but they may also be infected with some bacterial diseases. A man once washed his hands with hand sanitizer in public places after cutting his hands, which eventually led to a wound After ulceration, the hospital found that Pseudo-aerobic bacteria was infected. In severe cases, it may also cause blood infection and sepsis.
In fact, in addition to CCTV, there are many similar investigations like this:
In 2014, the hand sanitizer in 10 public toilets in Yinchuan was inspected through the new information report, and 6 samples of bacteria all seriously exceeded the standard.
In 2015, the Beijing Physical and Chemical Analysis and Testing Center conducted a test on hand sanitizer in public toilets in Beijing Station and other places and found that the total number of bacteria in some hand sanitizer reached 2300.
In addition, there are also types of tests abroad. In October 2020, a research team from Chungbek University of Health Sciences in South Korea conducted a test on hand sanitizer in public toilets in Cheongju City, which found that 92% of hand sanitizers contain pathogens. , it is easy to cause disease after infection.
Why are there so many hand sanitizer bacteria in this kind of public place?
The reason why hand sanitizer in public places is so dirty is actually two main reasons: First, use inferior hand sanitizer or water-added . In order to reduce costs, many toilets in public places choose to use inferior hand sanitizer, or Add water to hand sanitizer. Mixed water makes microorganisms more likely to reproduce in the water, and inferior hand sanitizers are basically "three-no products", which themselves contain many bacteria such as coliform group , Pseudomonas aeruginosa , etc.
The second is to reuse a hand sanitizer packer . In public toilets in some large shopping malls, the hand sanitizer uses the pressurized packer fixed to the wall shown in the figure below. This only goes Replace the hand sanitizer inside, and the dispenser is reused, and bacteria will continue to accumulate.
Why can't dry mobile phone be used in public toilets?
is ready. After learning about hand sanitizer, let’s take a look at the drying phone. The principle of drying phones is actually similar to the hair dryer we usually use. They both inlet and air flow.According to a 2018 study by the University of Connecticut, the dryer in public toilets will inhale air with bacteria and then spray it on your newly washed hands.
Not only that, the blown bacteria will also spread to the entire environment through the aerosol , and then fall into indoor facilities. The results can be imagined. In addition, researchers compared the public toilets with dryers and without dryers and found that the number of bacteria in the bathrooms using dryers is three times higher than that in the bathrooms without dryers. Do you still dare to use
after reading it? Okay, that’s all for today. Pay attention to the passers-by and hear from the passers-by say, See you next time. #Telebrity Creation Challenge#
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