A federally funded study has found “a strong association” between imported wallboard made in China and metal corrosion in U.S. homes in which the drywall has been installed, the Consumer Product Safety Commission says.
Preliminary studies of corrosion in electrical and fire-safety equipment also support that finding, says CPSC, which commissioned the studies. But no definitive tie has been found yet between the drywall and health problems that home owners have reported, which include asthma attacks, headaches and bloody noses.