OSHA 30 Hour Construction Program Practice Test

What do the colors on a hazard label indicate for health hazards?

1. Green indicates safety

2. Blue indicates health

3. Yellow indicates environmental impact

4. Red indicates toxicity

The correct answer is: Blue indicates health

The colors on a hazard label are designed to communicate specific types of hazards to workers clearly and effectively. In the context of health hazards, blue is the designated color that indicates a potential health risk. This color coding is part of the Globally Harmonized System (GHS) of Classification and Labeling of Chemicals, which aims to standardize hazard communication across different regions and industries. The blue color on a hazard label signals that the material poses a risk to health, which could include a variety of potential issues like chronic health effects, toxicity, or irritants that can affect individuals upon exposure. Understanding this color coding helps workers quickly interpret the hazards associated with substances they may encounter, allowing them to take appropriate precautions for their safety and health. Other colors, such as green, yellow, and red, represent different types of risks: green typically indicates safety or non-hazardous, yellow may signify caution or physical hazards, and red often denotes flammability or severe hazards, including toxicity. Recognizing these distinctions is crucial for maintaining a safe work environment.