Radon in New York City
New York, United States
Geological Context
Location and surrounding area
No official radon classification is available for this municipality.
What the regulations require
Dwellings
Action level 4 pCi/L (≈150 Bq/m³) for homes - EPA recommendation (not legally binding federal law). States may have additional requirements.
Workplaces
OSHA Permissible Exposure Limit (PEL): 100 pCi/L (≈3700 Bq/m³) 8-hour time-weighted average for occupational exposure. Significantly higher than residential level.
Professional services in New York City
NRPP-Certified Professionals
NEHA-administered NRPP certifications (RMP, RMFT, RMS) accredited by ANAB under ANSI/ISO/IEC 17024
NRSB-Certified Professionals
Independent NRSB certifications (RMT, RMS, RRS, ARL) following ANSI-AARST standards
State-Licensed Radon Professionals
State-licensed radon measurement or mitigation professionals (required in ~20 states)
What should you do?
Regardless of the official classification, the only way to know the radon level in a specific building is to measure it. A long-term test (at least 3 months) is recommended. You can either test yourself with passive detectors or hire a certified professional.
FAQ
What does the radon potential classification mean?▾
The radon potential indicates the likelihood that buildings in this area will have elevated radon levels, based on geological and measurement data from official authorities. It does not predict the level in any individual building.
Is measurement mandatory here?▾
It depends on the national regulations and the type of building. In priority action zones, measurement is often mandatory for workplaces and public buildings. For dwellings, measurement is generally recommended. Check the obligations section above for details specific to this country.
What should I do if the level is above the reference level?▾
If your long-term measurement exceeds the national reference level, mitigation measures such as sub-slab depressurization, sealing or improved ventilation can reduce radon levels significantly. Contact a qualified radon professional.