Construction Health and Safety Technician (CHST) 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 460

What is an example of a hazardous substance that could lead to permanent skin damage?

Arsenic

Mercury

Methanol

Both A and B

A hazardous substance that could lead to permanent skin damage includes both arsenic and mercury. Arsenic is a well-known toxic element that can cause skin lesions, including changes to the skin, keratosis, or malignancies upon prolonged exposure, especially through dermal contact or ingestion. Mercury, particularly in its organic form (methylmercury or elemental mercury), can also be harmful as it can cause skin damage, including rashes and sensitization, as well as systemic effects that may lead to serious health issues.

Both substances are considered significant health hazards in various occupational settings where workers might be exposed to chemical compounds. Therefore, recognizing these hazards is critical for implementing safety measures, such as personal protective equipment (PPE) and proper handling procedures to prevent adverse health effects, including permanent skin damage.

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