Environmental
Asbestos-containing materials (ACM) in a Colorado building pose the greatest health risk when they are:
AIntact and undisturbed
BPainted over with exterior paint
CFriable (crumbling or damaged) and releasing fibers into the air✓ Correct
DLocated in the exterior siding of the building
Explanation
Asbestos is most dangerous when it is friable — meaning it can be crumbled, pulverized, or reduced to powder by hand pressure, releasing fibers into the air. Intact asbestos that is not disturbed generally poses minimal risk but must be managed carefully during renovation.
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