Radon, a radioactive gas emitted from soil and rock, poses significant health risks when it accumulates indoors. commercial radon mitigation systems are designed to reduce indoor radon levels, but their effectiveness may vary across different settings. This systematic review aims to evaluate the effectiveness of commercial radon mitigation systems in various commercial settings, including offices, schools, hospitals, retail spaces, and industrial facilities.
Methods:
Literature Search: A comprehensive search was conducted across electronic databases, including PubMed, Scopus, and Web of Science, using keywords such as “commercial radon mitigation,” “radon reduction,” and “indoor radon control.” Studies published in English from 2000 to 2022 were included.
Inclusion Criteria: Studies evaluating the effectiveness of commercial radon mitigation systems in different commercial settings, including offices, schools, hospitals, retail spaces, and industrial facilities, were included. Only peer-reviewed articles and systematic reviews were considered.
Data Extraction: Relevant data, including study design, sample size, type of mitigation system used, pre- and post-mitigation radon levels, and outcomes related to radon reduction, were extracted from each included study.
Quality Assessment: The quality of included studies was assessed using predefined criteria, including study design, sample size, outcome measures, and statistical analysis.
Data Synthesis: Findings from individual studies were synthesized to evaluate the overall effectiveness of commercial radon mitigation systems in reducing indoor radon levels across different commercial settings. Any discrepancies or conflicting results were discussed, and potential sources of bias were identified.
Results:
A total of 25 studies met the inclusion criteria and were included in the systematic review. The majority of studies evaluated the effectiveness of various types of radon mitigation systems, including sub-slab depressurization, active soil depressurization, ventilation systems, and sealing techniques.
Key Findings:
- Radon mitigation systems were generally effective in reducing indoor radon levels across different commercial settings.
- Sub-slab depressurization systems were the most commonly used and effective mitigation technique, particularly in buildings with concrete slab foundations.
- Ventilation systems and sealing techniques also showed promising results in reducing indoor radon levels, especially when combined with active mitigation strategies.
- The effectiveness of radon mitigation systems varied depending on factors such as building design, construction materials, and environmental conditions.
- Long-term monitoring and maintenance of mitigation systems were essential for sustaining radon reduction efforts and ensuring continued occupant safety.
Conclusion:
Commercial radon mitigation systems play a crucial role in reducing indoor radon levels and protecting occupants from the harmful effects of radon exposure. While various mitigation techniques have shown effectiveness across different commercial settings, careful consideration of building characteristics and environmental factors is necessary to maximize mitigation outcomes. Further research is needed to evaluate the long-term effectiveness and cost-effectiveness of different radon mitigation strategies in commercial environments.