marijuana contaminants

Twenty states and Washington, D.C., now allow medical marijuana with a doctor's recommendation, and Washington state and Colorado have legalized the recreational pot use. Connecticut and Washington state already require testing and other states are doing the same, spawning a testing industry. (credit: David McNew/Getty Images)

Conn. University Testing Marijuana For Harmful Contaminants

The microscope at the University of New Haven, set at 10-times magnification, shows a marijuana leaf covered with dozens of tiny bumps. It’s mold, and someone, somewhere could be smoking similarly contaminated pot and not have a clue.

12/01/2013

Follow

Get every new post delivered to your Inbox.

Join 833 other followers