Construction Health and Safety Technician (CHST) Practice Test 2025 – All-in-One Study Guide for Exam Success!

Question: 1 / 460

Which of the following is NOT classified as a prime carcinogen according to OSHA?

Benzene

Ammonium hydroxide

Benzene, asbestos, and formaldehyde are all classified as prime carcinogens due to their known potential to cause cancer in humans upon exposure. Benzene is a well-documented carcinogen associated with increased risk of leukemia. Asbestos fibers can lead to lung cancer and mesothelioma, while formaldehyde has been linked to nasopharyngeal cancer and leukemia.

Ammonium hydroxide, on the other hand, is primarily known as a corrosive substance rather than a carcinogen. While it can pose health risks through its caustic nature, its classification does not include cancer risk per OSHA guidelines. This distinction is essential for safety professionals to understand as it helps in the assessment and management of workplace hazards. Recognizing the difference between carcinogens and other hazardous materials is crucial for maintaining safety standards and ensuring compliance with health regulations.

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Asbestos

Formaldehyde

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