What is the most common route of exposure to hazardous materials?

Inhalation is the most common route of exposure to hazardous materials because many harmful substances can become airborne and are easily breathed in. This mode of exposure is particularly concerning in various occupational settings where chemicals, particles, or fumes can be present in the workplace environment.

Inhalation allows hazardous materials to enter the bloodstream rapidly through the lungs, leading to more immediate and potentially severe health effects compared to other routes of exposure. Dermal exposure, while significant, often requires longer contact times or specific conditions for harmful effects to manifest. Ingestion is less common in professional environments but can happen, especially if hygiene practices are not followed. Intravenous exposure is rare in occupational contexts and typically occurs in medical settings, not in relation to hazardous materials in most workplace situations. Therefore, inhalation stands out as the most prominent and dangerous route for exposure.