In this chapter:

1. (1) "Board" means the Texas Board of Health.
2. (2) "Committee" means the Toxic Substances Coordinating Committee.
3. (3) "Department" means the Texas Department of Health.

4. (4) "Harmful physical agent" means a physical phenomenon, other than a toxic substance, that has or may have carcinogenic, mutagenic, teratogenic, or other harmful effects on humans, and includes:

   1. (A) ionizing radiation, X-rays, gamma rays, ultraviolet light, or other electromagnetic radiation; and
   2. (B) acoustical, thermal, or mechanical vibration.
5. (5) "Health risk assessment" means the use of objective data to characterize the potential adverse health effects that exposure to a toxic substance or a harmful physical agent may have on a person.
6. (6) "Toxic substance" means a substance that has or may have toxic, carcinogenic, mutagenic, teratogenic, or other harmful effects on humans, and includes a product that contains a toxic substance that poses or may pose a substantial hazard to human health.

Acts 1989, 71st Leg., ch. 678, Sec. 1, eff. Sept. 1, 1989.