The practice of taking one’s shoes off at the door is often thought of as a cultural choice rather than a hygienic one, however, a study conducted by Australian environmental chemists suggests that this should not be the case.
Scientists from the Australian Macquarie University who are studying the household environment and what contaminants exist within it have determined that when shoes are not taken off at the door a number of harmful contaminants can be walked into the home.
The Chief Environmental Scientist of Victoria’s Environment Protection Authority and Macquarie University Prof. Mark Taylor who co-authored an article in The Conversation with Prof. Gabriel Filippelli from Indiana University said that they have discovered that a third of the matter that builds up inside the home is either blown in or walked in on the bottoms of shoes from the outside.
…