Which statement best describes a dermal hazard example?

Which statement best describes a dermal hazard example?

• A. Solvents like toluene that can be absorbed through the skin.
• B. Ammonia gas.
• C. Silica dust.
• D. Noise.

Answer: (A)

Dermal hazards involve substances that can cross the skin barrier and enter the body, causing systemic effects or local irritation. A solvent such as toluene is a classic dermal hazard because it is lipophilic and can readily permeate skin, especially with prolonged contact or damaged skin, leading to absorption into the bloodstream and potential systemic toxicity. This is different from ammonia gas, which primarily poses an inhalation risk to the respiratory system; silica dust, though harmful, is mainly a hazard from inhalation; and noise is a physical hazard to hearing. Therefore, a solvent that can be absorbed through the skin best illustrates a dermal hazard. Protective measures include minimizing skin contact, using appropriate gloves, and washing exposed areas promptly.

Dermal hazards involve substances that can cross the skin barrier and enter the body, causing systemic effects or local irritation. A solvent such as toluene is a classic dermal hazard because it is lipophilic and can readily permeate skin, especially with prolonged contact or damaged skin, leading to absorption into the bloodstream and potential systemic toxicity. This is different from ammonia gas, which primarily poses an inhalation risk to the respiratory system; silica dust, though harmful, is mainly a hazard from inhalation; and noise is a physical hazard to hearing. Therefore, a solvent that can be absorbed through the skin best illustrates a dermal hazard. Protective measures include minimizing skin contact, using appropriate gloves, and washing exposed areas promptly.