Publication Details |
| Category | Text Publication |
| Reference Category | Book chapters |
| Title (Primary) | Kaltluftabflüsse und natürliches Strömungsregime bei Halden und Grubenbauen als Besonderheiten bei der Radonsanierung von Gebäuden in bergbaubeeinflussten Gebieten. Cold air outflows and natural flow regime at mine dumps and abandoned mines as special features in radon remediation of buildings in mining-affected areas |
| Title (Secondary) | Sicherheit beim Umgang mit Strahlung - 10. Gemeinsame Fachtagung des ÖVS und FS, Mondsee/Oberösterreich, 18.-22.09.2023 |
| Author | Dehnert, J.; Grünewald, H.; Altendorf, D.; Weber, L.; Trabitzsch, R.; Duzynski, M.; Oeser, V.; Berger, F.; Alisch-Mark, M.; Weiß, H.
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| Publisher | Maringer, F.J.; Völkle, H.; Froning, M. |
| Source Titel | Fortschritte im Strahlenschutz |
| Year | 2023 |
| Department | ENVINF |
| Volume | 186 |
| Page From | 97 |
| Page To | 107 |
| Language | deutsch |
| Topic | T5 Future Landscapes |
| Keywords | radon; radon protection; ventilation; abandoned mine; mine dump; Radon; Radonschutz; Lüftung; Altbergbau; Halde |
| Abstract | Radon remediation of buildings in areas affected by mining poses a unique challenge. Due to the natural density-driven flow regime in underground mine workings and aboveground heaps, radon containing air with activity concentrations up to 150,000 Bq/m3, can enter into buildings above ground. On the other hand, this radon-enriched air can leave mine galleries and heap base, exposing buildings below to radon activity concentrations up to 1,700 Bq/m3. On uncovered heaps, cold air flow occurs at night, intensifying the effect of outflowing air from the heaps on residential buildings below. Developing radon remediation strategies in mining areas, it is important to recognize that mine workings and heaps frequently built a connected unit. Moreover, former heaps may be difficult to recognise since they are frequently levelled and built over. For a comprehensive radon remediation of buildings in radon precautionary areas, ventilation systems with zone control and heat recovery have been expanded to incorporate the key parameter of radon activity concentration. Therefore, a new, compact, wireless radon sensor with high accuracy based on a Lucas cell was developed and integrated into the ventilation control system. Within the examples presented here, additional measures were necessary to complement the ventilation-based radon remediation, due to the presence of radon-rich air from nearby heaps. While in one building the ventilation system was upgraded with an additional radon sensor placed on the balcony which allowed enabling automatic ventilation turn-off when outdoor radon levels exceeded indoor levels. Inside the other building, however, additional sealing measures were necessary to isolate the basement from the heap to prevent radon entry. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=28490 |
| Dehnert, J., Grünewald, H., Altendorf, D., Weber, L., Trabitzsch, R., Duzynski, M., Oeser, V., Berger, F., Alisch-Mark, M., Weiß, H. (2023): Kaltluftabflüsse und natürliches Strömungsregime bei Halden und Grubenbauen als Besonderheiten bei der Radonsanierung von Gebäuden in bergbaubeeinflussten Gebieten. Cold air outflows and natural flow regime at mine dumps and abandoned mines as special features in radon remediation of buildings in mining-affected areas In: Maringer, F.J., Völkle, H., Froning, M. (Hrsg.) Sicherheit beim Umgang mit Strahlung - 10. Gemeinsame Fachtagung des ÖVS und FS, Mondsee/Oberösterreich, 18.-22.09.2023 Fortschritte im Strahlenschutz 186 Verlag TÜV Rheinland, Köln, S. 97 - 107 |
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