Chemical contaminants and auditory hazards in a public restroom.

Reichard, Larry

We used fluorescent powders to investigate the dispersal and transfer of chemical contaminants in public restrooms. Spectroline Model B-160 black lights were then used to assess the potential for manual flush toilets and automatic flush toilets to aerosolize fluorescent powders. After applying fluorescent powders to the hands of test subjects, individuals were asked to wash their hands. Black lights were again used to assess the amount of fluorescent powder remaining on the subjects' hands. We also examined restroom equipment to see if the test subjects had transferred the fluorescent powder to other items. The potential for electric hand dryers to disperse fluorescent powders was also examined. Airflow measurements above toilets and below hand dryers were taken using a Kestrel 3000. Decibel readings of automatic flush toilets and electric hand dryers were used to assess the potential for hearing impairment.

* Jennings, K., A. Whatley, M.F. Haskins, and M.T. Htoo. Biology Department, Rockhurst University and Biology Department, Avila University.