Formaldehyde complaint investigations in mobile homes by the Texas Department of Health.

The Texas Department of Health sampled for formaldehyde (HCHO) in 443 mobile homes between April, 1979, and May, 1982, at the request of the occupants. Colorimetric detector tubes were used most frequently for sample acquisition. HCHO concentrations ranged from below detectable limits (less than 0.5 ppm) to 8.0 ppm. Twenty-seven percent of homes one year of age or less had mean concentrations equal to or greater than 2.0 ppm while 11.5% of older homes had concentrations of 2.0 ppm or more. An inverse relationship is demonstrated between home age and HCHO level. The primary health complaints reported were headaches, respiratory discomfort, and ocular irritation. Evidence of a dose-response relationship was not present.