Not all drywall is as environmentally friendly as John's. In fact, some is downright toxic. In May a report from the largest investigation in the history of the U.S. Consumer Product Safety Commission cited 10 Chinese manufacturers as sources of sulfur-laden drywall found in thousands of homes constructed in the U.S. between 2005 and 2009, when a post-Hurricane Katrina building boom created a run on drywall and forced builders to seek out new suppliers.
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