ISSAQ: An integrated sensing systems for real-time indoor air quality monitoring

With growing transportation and population density, increasing global warming and sudden climate change, air quality is one of the critical measures that is needed to be monitored closely on a real-time basis in today's urban ecosystems. This paper examines the issues, infrastructure, information processing, and challenges of designing and implementing an integrated sensing system for real-time indoor air quality monitoring. The system aims to detect the level of seven gases, ozone (O₃), particulate matter, carbon monoxide (CO), nitrogen oxides (NO₂), sulfur dioxide (SO₂), volatile organic compound, and carbon dioxide (CO₂), on a real-time basis and provides overall air quality alert timely. Experiments are conducted to validate and support the development of the system for real-time monitoring and alerting.