What is the purpose of dust control measures in surface mining?

• A. To reduce respirable coal dust exposure and keep dust from obscuring visibility and causing equipment issues
• B. To eliminate all noise
• C. To increase production speed
• D. To replace PPE

Answer: (A)

Dust control in surface mining is about limiting airborne coal dust so workers aren’t exposed to fine particles and so the work area stays safe and productive. When respirable coal dust is reduced, the risk of lung diseases like pneumoconiosis decreases, protecting miners’ health. Keeping dust down also helps visibility for operators and nearby workers, reducing the chance of accidents, and it prevents dust from clogging equipment, filters, and other machinery components. So the main goal is to lower dust exposure, maintain clear visibility, and prevent dust-related equipment issues. The other options don’t fit because dust control doesn’t eliminate noise, isn’t primarily about speeding up production, and isn’t meant to replace PPE (PPE remains important even with dust controls in place).