How Much Bacteria Is On A Door Handle

Salmonella are often found in toilet bowls.

How much bacteria is on a door handle.

The faucet and interior door handles had only a fraction of the bacteria found on the shower curtain or floor. Flush handles generally have around 83 bacteria per square inch. However when those door knobs are made of brass or copper a chemical. Surfaces that are touched frequently from shopping carts to the elliptical machine at your gym are often crawling with bacteria.

Difficile has been found to survive for up to five months. Traditional grocery store shopping carts have 361 times more bacteria than a bathroom door knob. On clothing or skin the survival time is roughly halved. These harmful bacteria can cause severe vomiting and diarrhea in affected persons.

A 2000 study by scientists at the uk s aston university school of health and life sciences examined the household conditions of six families who had recently suffered from a salmonella outbreak. So much so that it could be harbouring 2 733 bacteria on just one square inch. Some flush handles harbor as many bacteria as are found on the floor. The survival time for bacteria is more variable.

Interestingly though other surfaces we touch frequently had relatively few bacteria. Taps you touch them before and after you wash your hands so you are transferring germs onto taps every time. By some scientific estimates each human hand is home to roughly 150 species of bacteria. Bathroom door s inside handle.

That goes for door knobs too of course. Salmonella only lasts four hours but mrsa can last several weeks and c. On a hard non porous surface like a door handle most viruses are destroyed within 24 hours. After a study conducted by the worcester polytechnic institute wpi gathered that 1323 bacterial colonies were displaced among 27 door handles.

Home office computer keyboard. One study found that starbucks door handles carried more bacteria than a new york city subway pole. Beth potter assistant professor of microbiology center helps students holly pier and marcelo lob test for bacteria on a door handle at penn state erie the behrend college.