Colonies of staphylococcus aureus. Image: matthias m./cc by-sa-3.0
Touch screens of check-in machines are well populated, but also the folding tables or the buckle for the seatbelt are no one-nodes
Airports, the non-places par excellence, try to present themselves as clinically pure, mirror-like and glittering places of passage, to which dirt and other negativity do not stick, but are destroyed immediately. But what if you get on an airplane and sit in a seat where unpaid people have sat before?
Insurancequotes.Com did not do much to investigate the hygienic condition and only took 18 samples from six surfaces of three large airports and airplanes and had them examined for bacteria and fungi. The worst contaminated are the check-in machines in the airport. Here you will find an average of almost 250.000 colony-forming units (cfu) per square inch (6 square centimeters). On the screen of a vending machine were found even 1 million cfu. So it is probably a good idea to put on plastic gloves when touching something in an airport.
Apparently it is amed that there is a greater risk in toilets, which is why they are cleaned more often and better than, for example, the screens of check-in machines and other surfaces. Only one tenth as much as on screens was found on armrests (21.630 cfu), also the buttons of water dispensers are with 19.181, water dispenser knobs are also a sought-after territory for microbial colonization.
Compared to this, kitchen worktops are virtually deserted, with an average of just 361 cfu. Levers for flushing toilets are even less colonized, with just 30 cfu. But it depends probably nevertheless very much, where one nachgepruft becomes. Another study concluded that kitchen countertops contain an impressive 5.500.000 cfu a home can offer. The door handles of drawers and dishwashers are also particularly dirty
In airplanes, however, the knob on the toilets is the most populated with more than 95.000 cfu, followed by 11,600 on the folding tray or the.600 on the folding tray or a mere 1116 on the buckle of the seat belt.
Keyboard and computer mouse are coveted habitats
But smooth touchscreens at the check-in terminals were allowed to be much better than keyboards with their numerous niches, which are difficult to clean, but get into the brosel or liquids as food for bacteria or fungi. According to a study from last year, there are sometimes 3.543.000 kbe to a square inch, which is 20 kbe to a square inch.598 more bacteria than on a toilet seat with just 172 cfu. Another payment, however, found only 23 cfu on computer keyboards.
With 1.600.000 kbe, smartphones are also well inhabited. A computer mouse still had 45.670 more bacteria than levers for toilet flushing. Quite clean, on the other hand, is paper money, where only 5 cfu are supposed to reside. An investigation under the title "dirty money project" had found up to 3000 different species of bacteria on 1-dollar bills.