Discussion
Dust suppression on quarry haul roads is carried out chiefly to
Answer: A
Correct answer: protect the health of workers and nearby residents
Respirable dust from haul roads causes silicosis and other respiratory disease, and it carries beyond the site boundary to neighbours. Suppression by watering or with binders is therefore a health control first, and a permit condition at most quarries. Visibility and community relations benefit too, but they are not the reason it is required.
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