An Electronic Nose Sniffs Out Food From Problem Sources

http://www.fastcoexist.com/1679608/an-electronic-nose-sniffs-out-food-from-problem-sources

"To see how prevalent it is, Picarro tested products sold by companies from Whole Foods to lesser known brands. So far they’ve found Italian olive oil that is neither from Italy nor olives, as well as cosmetics derived from shark liver oil rather than plants (a compound known as squalane)."