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Timothy Huber pleads guilty to second-degree murder in 2011 shooting death of teacher

toxins

May 15, 2013
In a matter of seconds, the X-ray Fluorescence Spectroscopy scanner can identify if an item contains arsenic, bromine, cadmium, chlorine, lead, and mercury, and at what levels. Tribune photo by Tom Cherveny
A healthy choice: Check for toxins in your home
May 15, 2013 - 3:32pm