Environmental
A Mississippi property located in an area with high naturally occurring radon should have which type of system installed if radon levels exceed 4 pCi/L?
AA lead abatement system
BA sub-slab depressurization system (radon mitigation system)✓ Correct
CA HEPA air filtration system
DA carbon monoxide detector only
Explanation
Sub-slab depressurization (SSD) is the most common and effective radon mitigation method. It uses a fan and pipe system to draw radon from beneath the foundation and vent it above the roofline, keeping indoor levels below the EPA action level of 4 pCi/L.
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