Which of the following is NOT a typical route of exposure to hazardous materials?

Thermal contact is not considered a typical route of exposure to hazardous materials when compared to inhalation, ingestion, and skin contact. Inhalation involves breathing in hazardous substances through the air, which can result in immediate or long-term health effects. Ingestion refers to the intake of hazardous substances through the mouth, either accidentally or through food and drink contamination. Skin contact is when hazardous materials come into contact with the skin, leading to potential absorption and harm.

While thermal contact, such as exposure to excessive heat or cold, can cause injury, it does not relate directly to hazardous materials in the context of chemical exposure and toxicity. The typical routes of exposure pertinent to hazardous materials primarily involve ways substances enter the body, which thermal contact does not facilitate. Thus, it is the option that stands apart from the other routes.