Which of the following is an example of a chronic health hazard?

A chronic health hazard is characterized by long-term health effects that can result from prolonged exposure to dangerous substances or conditions. In this context, lung cancer from occupational exposure is an example of a chronic health hazard because it typically develops over an extended period, often years or decades, from consistent exposure to harmful substances such as asbestos or certain chemicals.

Other options present acute or immediate effects rather than chronic conditions. Burns from chemical exposure are typically associated with immediate harm, puncture wounds from sharp objects occur suddenly, and allergic reactions can happen quickly upon contact. These conditions do not share the same long-term implications on health that chronic hazards do. Therefore, lung cancer represents the prolonged adverse effects resulting from past environmental exposures, distinguishing it clearly as a chronic health hazard.