RMS Radon Measurement Techniques 3

Question 1

Which radon measurement unit is used in the United States to express radon concentration in air?

Accepted Answer

Picocuries per liter (pCi/L)

Answer

The United States uses picocuries per liter (pCi/L) as the standard unit for airborne radon concentration, while most other countries use Bq/m³.

Question 2

A charcoal canister radon test must be analyzed within how many days of retrieval to ensure valid results?

Accepted Answer

7 days

Answer

Charcoal canisters must be analyzed within 7 days of retrieval because adsorbed radon continues to decay and the charcoal's collection capacity diminishes over time.

Question 3

What does the term 'working level' (WL) measure in the context of radon?

Accepted Answer

The concentration of radon progeny (decay products) in air

Answer

A working level (WL) is a unit measuring the concentration of short-lived radon progeny in air, defined as any combination releasing 1.3×10⁵ MeV of alpha energy per liter.

Question 4

Under EPA measurement protocols, which room is NOT an acceptable location for placing a radon test device?

Accepted Answer

Basement laundry room

Answer

Bathrooms, laundry rooms, kitchens, and other rooms with high humidity or mechanical ventilation are not acceptable test locations under EPA protocol.

Question 5

A continuous radon monitor (CRM) must meet which data-reporting interval requirement under AARST/ANSI protocols?

Accepted Answer

Report radon concentration at least every 1 hour

Answer

AARST/ANSI protocols require CRMs to record and report radon concentrations at least every hour to detect anomalous fluctuations and tampering.

(RMS) Radon Mitigation Specialist Practice Test

(RMS) Radon Mitigation Specialist Practice Test

RMS Radon Measurement Techniques 3