Workers in a textile unit are exposed to airborne cotton dust. Which environmental control is most effective for reducing exposure at the source?
Correct answer: B. Install local exhaust ventilation near dusty machinery
- A. Provide sweetened drinks during the shift
- B. Install local exhaust ventilation near dusty machinery
- C. Ask workers to work faster to shorten exposure
- D. Place a fan behind each worker to blow dust away
Explanation
Local exhaust ventilation captures cotton dust near the machinery before it spreads through the workplace. Fans that blow dust around may increase exposure, while drinks and shorter tasks do not control the airborne hazard.
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About Environmental Health and Sanitation
Environmental health examines how water, air, food, housing, waste, noise, chemicals and workplace conditions affect disease and well-being. Sanitation content includes safe water treatment and storage, sewage and solid-waste disposal, food hygiene, vector control and the distinction between personal cleanliness and broader public-health sanitation.
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