现有和新近的氡控制系统建筑：回顾

波利 马博, 诺林 ·特
土木工程局

摘要

为支持新的加拿大氡气指南的实施，全面审查氡气缓解技术在世界各国进行了使用，特别强调了有气候的
北美和欧洲和类似于加拿大的建筑技术。本次审查的结果在此呈现为对管理人员的帮助氡控制计划、提供氡测试和
缓解服务的公司以及其他相关方，均在加拿大和其他地方，他们正面临实施氡控制战略的问题。多种氡气缓解措施
世界各地都采用了各种策略，并且都在降低氡浓度方面取得了一些成功。一般来说，涉及对房屋进行物理改造（例
如子板减压）的主动缓解技术在以下方面更有效与被动技术相比，实现持续和大量的氡减少（例如改善通风或裂缝
密封）。在很大程度上，最佳缓解策略的选择将取决于建筑类型、土壤条件和气候。修复后应定期测量氡水平，可能
每 5年测量一次，以确保浓度继续保持在可接受的水平。

关键词

大氡气；氡控制；系统建筑；氡测试；房屋改造

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