The demand for real-time Indoor Air Quality (IAQ) management has increased recently, since low-cost and modern sensors such as Particulate Matter (PM), Volatile Organic Compounds (VOCs), Carbon Monoxide (CO), Carbon Dioxide (CO2), Radon (Rn), among others, have been put forward with considerable accuracy. Although these low-cost sensors cannot be considered measurement instruments, they are very useful for a vast number of application domains, such as home automation, smart building management, IAQ management, risk exposure assessment, to name a few. This paper presents a literature review and a prospective analysis and discussion regarding Internet of Things (IoT) technologies adopted to deal with scenarios that present known indoor Radon gas problems. Specifically, the main requirements for developing IoT-enabled radon management solutions are reviewed. Thus, a traditional IoT architecture is described, its main components are analyzed and some of the most recent academic solutions are reviewed. Finally, novel approaches for deploying IoT radon management architectures are presented together with the most relevant open challenges. In this way, this article presents a holistic review of the past, present, and future of indoor radon management in order to provide guidelines for future designers and developers.

翻译：近年来，随着颗粒物（PM）、挥发性有机化合物（VOCs）、一氧化碳（CO）、二氧化碳（CO₂）、氡（Rn）等低成本现代传感器以相当高的精度被推出，对实时室内空气质量（IAQ）管理的需求日益增长。尽管这些低成本传感器尚不能被视为测量仪器，但它们在家庭自动化、智能楼宇管理、室内空气质量管理和风险暴露评估等众多应用领域中非常有用。本文针对用于应对已知室内氡气问题的物联网（IoT）技术，进行了文献综述、前瞻性分析与讨论。具体而言，本文回顾了开发支持物联网的氡管理解决方案的主要需求。因此，文中描述了一种传统的物联网架构，分析了其主要组件，并综述了一些最新的学术解决方案。最后，本文提出了部署物联网氡管理架构的新方法，并指出了最相关的开放性挑战。通过这种方式，本文对室内氡管理的过去、现在和未来进行了全面回顾，旨在为未来的设计者和开发者提供指导。