Think that public restrooms are the dirtiest place? Not so, according to scientists from the International Journal of Environmental Health Research.
After collecting 1,100 samples at public places like airports, offices, and bathrooms, they found that the dirtiest place are:
The most frequently contaminated areas were playgrounds and day care centers, with 46 percent showing high levels of contamination. Public restroom surfaces ranked far behind, at 25 percent, just ahead of public transportation handrails and armrests (in buses, for example) and shopping cart handles (about 21 percent each). Not far behind that were escalator handrails (19 percent), vending machine buttons (14 percent) and public phones (13 percent).