A study by Kimberly-Clark in 2015 investigating bacterial hot spots in the workplace fingered gas pumps as one of the unhealthiest things you can handle, and a new survey recently corroborates those findings.
Admittedly, it’s probably no great surprise that gas pumps are not exactly pristine. Never mind the chemical contamination that comes from gasoline itself, think about the sheer number of people endlessly grabbing the pump, often after returning from a pit stop at the not-so-hygienic gas station bathroom.
[...] It’s not just the number of germs present on gas pump handles, but the quality of those germs. The earlier Kimberly-Clark study, led by a University of Arizona microbiologist named Charles Gerba (whom colleagues know as “Dr. Germ”), found that 71 percent of the pumps were highly contaminated with germs associated with disease.
[...] Based on laboratory results from swabs from the sample gas pumps, handles on gas pumps had an average of 2,011,970 colony-forming units (CFUs), or viable bacteria cells, per square inch. Worse, the buttons on the pumps (where you select the grade of gas you want), had 2,617,067 CFUs per square inch. To put that in perspective, money, which is considered quite dirty since it changes hands often, has only 5.2 CFUs per square inch. A toilet seat has 172 CFUs per square inch. That makes a gas pump handle about 11,000 times more contaminated than a toilet seat, and a gas pump button 15,000 times more contaminated.
[...] If you want to minimize your exposure to these germs, use a paper towel to hold the handle and push the button, or keep that hand sanitizer around and wash your hands after filling up.Many more ghastly details at the full article.