Comprehensive survey on air quality monitoring systems based on emerging computing and communication technologies

In recent years, technologies related to indoor and outdoor air quality monitoring systems have been growing rapidly, particularly computing and communication technologies. Accordingly, the integration of the Internet of things within these novel emerging technologies provides a promising opportunity for the development of air quality systems, which require new networking models, approaches, and mechanisms for many constraints. Understanding and investigating the existing air quality systems help the decision-making process to match data flow management with adequate intelligent, adaptive, and reasoning technologies. In this context, this paper will give more details and will provide a deep investigation on emerging communication protocols, networking systems, sensors, architectures, and technologies related to indoor and outdoor air quality systems. Furthermore, we will provide a cognitive IoT architecture for air quality monitoring systems and we will highlight and discuss technical challenges and open research issues.