Toxicologist : Months of more investigating needed before determining health threat . Florida Health Department : Tests show strontium sulfide in Chinese drywall . Comment: Homeowners : Smelly gas from drywall corroding metal , ruining appliances .
Toxicologist : Months of more investigating needed before determining health threat . Florida Health Department : Tests show strontium sulfide in Chinese drywall . Strontium sulfide is corrosive , can cause health problems , federal agencies say . Homeowners : Smelly gas from drywall corroding metal , ruining appliances .