From the NY Times:
Federal investigators reported on Monday that a “strong association” exists between chemicals in Chinese drywall installed in thousands of homes during the housing boom and electrical problems in those homes.
In addition, investigators said that the drywall was a possible cause of respiratory problems reported by homeowners, brought on by hydrogen sulfide gas emitted from the imported drywall in combination with formaldehyde, which is common in new homes.
The finding, released by the Consumer Product Safety Commission, is the second in a series of progress reports on a widespread investigation into complaints by homeowners that their newly built homes were giving off a rotten egg odor and causing respiratory problems, and that appliances and electrical systems were failing quickly.
A probe of American drywall is also in the works.