SERVIZI

Radon Dosimetry – Puglia

Regulatory References

Regional Law 3 November 2016, n. 30 – “Rules on reducing exposure to natural radioactivity from radon gas in enclosed environments” – establishes the obligation to measure radon gas in all publicly accessible places across the Puglia region.

The regulation was subsequently amended by Article 25 of Regional Law 36/2017 of 9 August 2017 (published in BURP n. 96 of 11 August 2017).

Regulatory Update: Identification of Priority Areas (2025)

The Puglia Region, through Resolution G.R. n. 1523/2025 and publication in the Official Gazette n. 269 of 19 November 2025, approved the “First identification of priority areas” for radon gas exposure, pursuant to Article 11, paragraph 3 of Legislative Decree 101/2020 and subsequent amendments.

The regional regulation aligns with national provisions and strengthens preventive measures in the most exposed areas.

Municipalities identified as PRIORITY AREAS:
CASARANO, SURBO, MINERVINO DI LECCE, CAMPI SALENTINA, MAGLIE, ZOLLINO, COPERTINO, LECCE

Key regulatory update: measurement of radon is now mandatory in all workplaces located on the ground floor, basement, and underground levels in municipalities identified as priority areas.

Measurement Obligations for Different Types of Buildings

Strategic and Educational Buildings
According to D.M. 14.01.2008, strategic buildings, including schools of all levels, nurseries, and kindergartens, must comply with a maximum radon concentration of 300 Bq/m³ in enclosed spaces.
Measurements must be carried out exclusively using passive instrumentation.

Basements, Semi-Basements, and Ground-Floor Rooms
In buildings other than schools or strategic buildings, but still accessible to the public (excluding residential buildings and isolated technical rooms serving utility systems), the maximum radon concentration is also set at 300 Bq/m³, measured with passive instruments.

Rooms on the ground floor with an area of less than 20 m² are exempt from measurement obligations, unless they are structurally connected to other rooms, exceeding the dimensional limit. To qualify for exemption, rooms must also have adequate ventilation.

Radon Gas Measurement Methods

Radon gas concentration is measured using CR-39 nuclear track detectors, a highly reliable passive instrumentation technology.

Measurement process:

Detector placement: installed at a height of 1–3 meters above the floor, away from heat sources and artificial ventilation.
Monitoring period: one full year, divided into two semesters:
- Spring–Summer
- Autumn–Winter
Collection and analysis: at the end of the exposure period, detectors are collected and analyzed to determine the annual average radon concentration.

Obligations for Communicating Results

At the end of the measurement campaign, LB Servizi prepares and transmits the official report to the following authorities:

Relevant Municipality
ARPA Puglia (Regional Agency for Environmental Protection of Puglia)

The notification must be submitted within one month from the completion of the measurement.

Penalties for Non-Compliance

If measurements are not submitted within 18 months from the entry into force of the regional law, the Municipality will issue an ordinance requiring compliance, granting a maximum additional period of 30 days.
If the data is still not submitted within this period, the building’s occupancy certification may be suspended.