U.S. Consumer Product Safety Commission
Senator Bill Nelson
In the 41 homes containing Chinese Drywall, there was a "strong association" between the high levels of hydrogen sulfide and the corrosion of the metals... "Temperature, humidity and air-exchange rates also appear to be contributing factors, " according to Jack McCarthy. Note that higher moisture and temperature levels and lower air-exchange rates were connected with more advanced corrosion. Formaldehyde was also found in both complaint and noncomplaint homes. McCarthy also added, "... we can say that the levels of the pollutants we found, particularly the hydrogen sulfide and formaldehyde, could possibly contribute to some of the health problems that have been reported to the CPSC."