The most bacteria per square inch was found on surfaces commonly used by school teachers. This may be due to constant teacher contact with children or children’s interaction with surrounding surfaces.
Surfaces regularly used by teachers had ten times more bacteria per square inch when compared to other professions. Bankers were 2nd in the amount of surface bacteria found, with accountants 3rd. Lawyers were found to have the least amount of bacteria per square inch.
The amount of bacteria or germs found on each surface is thought to be directly related to item usage and cleaning practices. Occupation averages consisted of the phone, desk and computer mouse.