Safety Trained Supervisor in Construction (STSC) Practice Exam 2026 - Free STSC Practice Questions and Study Guide

The primary exposure paths for chemical compounds to enter the body include being inhaled, coming into contact with the skin, and being swallowed. These routes are essential to understand, especially in the context of workplace safety and potential exposure to hazardous materials.

Inhalation is a significant pathway because many chemicals are airborne and can be breathed into the lungs, where they can enter the bloodstream and affect various organs. Skin contact is also critical, as many substances can penetrate the skin and lead to systemic exposure or localized effects, making it a pertinent concern in environments where chemicals are handled. Swallowing constitutes another vital route, particularly if chemicals are ingested accidentally or through contaminated hands or food, leading to gastrointestinal absorption.

This understanding is crucial for developing safety protocols and ensuring proper protective measures are in place to reduce the risk of exposure in work environments. Other options mentioned might include routes of exposure, such as being injected or absorbed, but they do not encompass the primary pathways as comprehensively as the selected answer.