Chinese drywall hydrogen sulfide linked to corrosion of wiring, AC units, computers, doorknobs, jewelry, with possible health effects.

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Thousands of U.S. homes tainted by Chinese drywall should be gutted, according to new guidelines released Friday by the Consumer Product Safety Commission. The guidelines say electrical wiring, outlets, circuit breakers, fire alarm systems, carbon monoxide alarms, fire sprinklers, gas pipes and drywall need to be removed.
"We want families to tear it all out and rebuild the interior of their homes, and they need to start this to get their lives started all over again," said Inez Tenenbaum, chairwoman of the commission, the federal agency charged with making sure consumer products are safe.
Homeowners, mostly in Florida, Virginia, Mississippi, Alabama and Louisiana, have reported problems with the Chinese-made drywall, which was imported in large quantities during the housing boom and after a string of Gulf Coast hurricanes.
The drywall has been linked to corrosion of wiring, air conditioning units, computers, doorknobs and jewelry, along with possible health effects. Tenenbaum said some samples of the Chinese-made product emit 100 times as much hydrogen sulfide as drywall made elsewhere.
The agency continues to investigate possible health effects.
preliminary studies have found a possible link between throat, nose and lung irritation and high levels of hydrogen sulfide gas emitted from the wallboard, coupled with formaldehyde, which is commonly found in new houses.