Mold Assessment Technician Practice Exam

Hazardous substances can enter the body through which of the following routes?

1. Inhalation only

2. Ingestion and skin absorption only

3. Inhalation, ingestion, and skin absorption

4. Direct injection

The correct answer is: Inhalation, ingestion, and skin absorption

Hazardous substances have multiple pathways through which they can enter the human body, making the option encompassing inhalation, ingestion, and skin absorption the most comprehensive and accurate. Inhalation refers to the process where airborne contaminants, such as mold spores or toxic fumes, are breathed into the lungs, where they can then enter the bloodstream and affect various organs. This route is particularly significant in environments where individuals are exposed to airborne particles. Ingestion involves the accidental or intentional consumption of hazardous substances, such as consuming contaminated food or water, which can lead to systemic absorption of the substance into the body. Skin absorption is another critical pathway, where hazardous materials can penetrate through the skin's surface, leading to localized or systemic effects, depending on the substance and the area of exposure. Considering all three routes— inhalation, ingestion, and skin absorption — gives a holistic view of how hazardous substances can affect human health, highlighting the importance of protective measures in environments where exposure is a risk.