Originally Published by CBS News
You probably clean your shoes if you step in something muddy or disgusting (please pick up after your dog!). But when you get home, do you always de-shoe at the door?
Plenty of people don’t. For many, what you drag in on the bottom of your shoes is the last thing on the mind as one gets home.
We are environmental chemists who have spent a decade examining the indoor environment and the contaminants people are exposed to in their own homes. Although our examination of the indoor environment, via our DustSafe program, is far from complete, on the question of whether to shoe or de-shoe in the home, the science leans toward the latter.
People spend up to 90% of their time indoors, so the question of whether or not to wear shoes in the house is not a trivial one.
The policy focus is typically on the outdoor environment for soil, air quality and environmental public health risks. However, there is growing regulatory interest in the question of indoor air quality.
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