The conclusion followed testing at 51 homes in Florida, Alabama, Louisiana, Mississippi and Virginia that found "a strong association between the problem drywall, the hydrogen sulfide levels in homes with that drywall and corrosion in those homes.''
The agency cautioned that not all Chinese drywall is a source of problems.
``Not all drywall is alike,'' said Jack McCarthy, president of Environmental Health & Engineering, which conducted the testing for CPSC. ``Not all Chinese drywall is alike. It depends on what it's made of -- not the country it came from.''
CPSC spokesman Scott Wolfson said the agency is ``not limited in the scope of our investigation to just Chinese drywall.''
To date, the CPSC has received 2,091 complaints reports from residents in 32 states, the District of Columbia and Puerto Rico who believe their health symptoms or the corrosion of certain metal components are related to Chinese drywall. The majority of those -- more than 1,400 -- are from Florida residents.
