[Radon risk evaluation in a hospital context].

Area of Science:

• Environmental Health
• Radiological Protection
• Occupational Safety

Context:

• Italian legislation sets a maximum annual radon concentration of 500 Bq/m3 for underground occupational spaces.
• A survey was conducted in a Milan hospital to assess indoor radon levels.
• Previous studies on hospital radon levels are limited.

Purpose:

• To evaluate indoor radon concentrations in a hospital setting in Milan.
• To compare measured radon levels with Italian legislative limits.
• To assess the effectiveness of short-term monitoring for radon screening.

Summary:

• Radon concentrations in the surveyed hospital were consistently below the legal action level of 500 Bq/m3.
• Median radon concentration was 16 Bq/m3, with levels ranging from 6 to 214 Bq/m3.
• A specific pavilion with higher levels (103-214 Bq/m3) was monitored seasonally, confirming levels below the legal limit but warranting attention.

Impact:

• The study underscores the importance of precise and punctual radon monitoring strategies.
• Short-term radon measurements are validated as an effective tool for screening premises.
• Findings contribute to understanding radon exposure risks in healthcare environments and inform public health policies.