Still, the new study gives one pause and suggests a bottle of sanitizer might not be a bad glove compartment staple. 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. The new survey, conducted by Busbud, studied samples from three different gas stations, as well as three different charging stations, to see what we may be exposing ourselves to. The sample size is small, but the results mirror the larger earlier study and are eye-opening.The new study doesn’t give me pause, nor does it suggest a bottle of sanitizer. We are constantly and unavoidably surrounded by germs. They are a part of us, a part of life. For germs thou art, and unto germs shalt thou return. Relax, people. If gas pump buttons could kill you, you’d be long since dead.
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.