"Here's an item that you shouldn't include in your ever-growing arsenal of electronic devices, including cellphones, iPods, PDAs, GPS trackers and laptops: the e-cigarette. The Food and Drug Administration today released an analysis of 19 varieties of electronic cigarettes that says that half contained nitrosamines (the same carcinogen found in real cigarettes) and that many contained diethylene glycol, the poisonous ingredient in antifreeze. Some that claimed to have no nicotine were found to have low levels of the drug."
FDA Says Electronic Cigarettes Contain Toxic Chemicals
Source: LA Times, 07/23/2009