Radiological Monitoring in Bulgaria: Atmospheric Air, Soil, Sediment, and Surface Water

Bulgaria's radiological monitoring network measures radioactivity in environmental components to detect deviations from permissible levels. The data likely includes periodic measurements of atmospheric aerosols, non-arable soils, sediments, and surface waters from hundreds of sampling points across the country. The dataset is provided by the Data Department of Bulgaria's State e-Government Agency.

Use Cases

• Modeling atmospheric radioactivity dispersion based on aerosol sampling volumes and frequencies described for cities like Sofia and Varna.
• Assessing soil and sediment contamination in regions with potential polluters, such as former uranium mining sites, using gamma-spectrometric analysis.
• Monitoring surface water quality by analyzing indicators like total alpha/beta activity, natural uranium content, and Ra-226 specific activity.
• Establishing baseline environmental radiation levels across Bulgaria using data from the background monitoring network of hundreds of soil and sediment points.

Strengths

• The monitoring network includes a specific number of sampling points: 445 non-arable soil points and 55 sediment points for background monitoring.
• Detailed sampling protocols are described, including air volumes (e.g., 3000 m³ in Sofia) and soil sampling depths (e.g., 0-20 cm for background, 0-5 cm near potential polluters).
• Monitoring covers multiple environmental components: atmospheric air, soils, sediments, and surface waters.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Data Department - State e-Government Agency

Collection Method

Periodic sampling and gamma-spectrometric analysis at a network of stationary and portable stations across Bulgaria.

Time Range

The description references monitoring conducted in 2020.

Geography

Bulgaria, with specific mentions of cities and regions including Sofia, Vratsa, Montana, Varna, Burgas, Bukhovo, Yana, Svishtov, Plovdiv, Smolyan, Pazardzhik, and Stara Zagora.