Which of the following is classified as a health hazard?

Toxic chemicals are classified as health hazards because they can cause adverse health effects on individuals who are exposed to them, whether through inhalation, skin contact, or ingestion. These chemicals include substances that may lead to acute or chronic health effects, including but not limited to cancer, organ damage, respiratory issues, or neurological effects. Since toxic chemicals pose a risk to human health, they are recognized as a significant concern in hazardous waste operations and emergency response scenarios.

In contrast, corrosive substances primarily pose a physical hazard by damaging materials or skin upon contact, while flammable materials present risks related to fire and explosion rather than direct health impacts. Explosive compounds present immediate physical dangers due to their potential to detonate, but they do not inherently pose a health risk like toxic chemicals do in terms of long-term exposure effects. Therefore, the classification of toxic chemicals as health hazards is rooted in their capacity to cause serious health issues as a consequence of exposure.