You Won't Believe What the Most Germ-Ridden Surface at the Airport Is Hint: It's not the toilet seat.

By Lydia Belanger

Opinions expressed by Entrepreneur contributors are their own.

David-Prado | Getty Images

Many airport toilet seats have plastic covers that can be changed by waving a hand in front of a sensor. But even if they didn't, chances are they wouldn't be as filthy as other surfaces travelers regularly come in contact with.

In a small study by InsuranceQuotes.com, researchers swabbed six different surfaces three times each across various airports and major airline U.S. flights. These surfaces included self check-in kiosks, airplane lavatory flush buttons, tray tables, airline gate bench armrests, airport water fountain buttons and airplane seat belt buckles.

The results showed that airport check-in kiosks harbor the largest collection of illness-causing bacteria, followed by airplane lavatory flush buttons.

If you think about it, people spend far less time at a kiosk than sitting at the gate or in their airplane seat, so far more people come into contact with each kiosk, and each person adds a new batch of germs to the kiosk's surface. As for the flush button, the fact that airlines are free to determine cleaning routines for their planes, free of FAA oversight, might explain the dirtiness.

Check out the infographics below to see how the density of germs varies between these common objects travelers touch -- and compares to average surfaces in American homes.

Related: 9 Ways Your Office May Be Killing You

Related video: This Travel Company's Headquarters Has Ping-Pong Tables and Kombucha on Tap

Lydia Belanger is a former associate editor at Entrepreneur. Follow her on Twitter: @LydiaBelanger.

Want to be an Entrepreneur Leadership Network contributor? Apply now to join.

Business News

'Now Accepting Applications': Elon Musk Is Opening a New Preschool in Texas Called Ad Astra. Here's How to Apply.

The school got an official permit last month to operate with as many as 21 students.

Business Ideas

63 Small Business Ideas to Start in 2024

We put together a list of the best, most profitable small business ideas for entrepreneurs to pursue in 2024.

Business News

'We're Not Allowed to Own Bitcoin': Crypto Price Drops After U.S. Federal Reserve Head Makes Surprising Statement

Fed Chair Jerome Powell's comments on Bitcoin and rate cuts have rattled cryptocurrency investors.

Business News

A New Hampshire City Was Named the Hottest Housing Market in the U.S. This Year. Here's the Top 10 for 2024.

Zillow released its annual lists featuring the top housing markets, small towns, coastal cities, and geographic regions. Here's a look at the top real estate markets and towns in 2024.

Business Ideas

Is Your Business Healthy? Why Every Entrepreneur Needs To Do These 3 Checkups Every Year

You can't plan for the new year until you complete these checkups.