A concentration of contaminants in excess of permissible levels may also be considered:

• A. A minor infraction
• B. Injurious or dangerous
• C. Within acceptable limits
• D. A routine occurrence

Answer: (B)

When contaminants are present at levels that exceed permissible limits, they pose a potential risk to health and safety. This is particularly critical in mining environments, where exposure to unsafe levels of contaminants can lead to serious health issues for workers. Characterizing such a scenario as "injurious or dangerous" aligns with regulatory frameworks that prioritize the well-being of mine workers and the surrounding environment. It emphasizes the need for immediate action to mitigate risks, protect personnel, and comply with safety regulations.

This classification underscores the severity of the situation rather than trivializing it. Understanding that excessive contaminants are dangerous supports the implementation of safety measures and the enforcement of stricter monitoring to ensure that all operational practices remain within safe thresholds. Recognizing it as dangerous leads to heightened awareness and proactive management strategies, preventing potential accidents or exposure-related illnesses.