EnvironmentalIntermediateAlabama Exam

The EPA's safe level for radon in indoor air is below:

A2 pCi/L
B4 pCi/LCorrect
C8 pCi/L
D10 pCi/L

Why 4 pCi/L Is Correct

Answer B: 4 pCi/L

The EPA recommends taking action to reduce radon if indoor levels are at or above 4 picocuries per liter (pCi/L). Levels above 4 pCi/L are considered elevated and mitigation (typically a sub-slab depressurization system) is recommended.

Exam Tip: Environmental

Environmental questions test knowledge of hazards like asbestos, lead-based paint, radon, and mold. Know the disclosure requirements and when a professional inspection is required. CERCLA liability is strict, joint, and several.

People Also Study

Practice More Alabama Real Estate Questions

1,500+ questions covering all exam topics. Start free — no signup required.

Take the Free Alabama Quiz →