http://www.treehugger.com/files/2005...a_forest_1.php
Check out the above article. We have looked into this and the other option for you is MDF (nedium density fiberboard) plywood or a lumber core plywood. If you look there are options without the chemicals but they drive the price up a bit.
At the end of the day it might be cheaper than lingering chronic health problems.
Good luck, Tony
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