The term “toxic industrial chemical” refers to a variety of chemicals used by industry in various processes, created by industry for various purposes, or released to the soil, to water, or to the air by industry as byproducts of either. Any chemical can be toxic or harmful in some dose, and the most dangerous of TICs are those that have harmful effects in relatively low doses when in air or in contact with skin or eyes.
The potential exists for first responders and surrounding populations located downwind or near such an industry to be exposed to levels that may impact their health. (See Figure 2-7 below.) Toxic industrial chemicals (TIC) may pose a high risk when they are stored in large quantities in one location. An act of sabotage or an accident can result in a large release of liquids, which could volatize and be breathed in by those nearby, or travel some distance downwind. An example would be a release of chlorine gas from a large tank into the surrounding air. Such a release could cause injuries and deaths into the thousands.