A Hybrid Measurement Kit for Real-time Air Quality Monitoring Across Senegal Cities

Due to the huge number of ancient cars and poor quality fuels, the standard air quality limit values of particulate matter (PM) is a big concern in Senegal. PM and number of gaseous pollutants that have an adverse affect on human health increase continuously. In contrast to remaining Senegalese regions, Dakar region hosts main socio-economic and administrative activities and suffers more according to above emissions. Therefore, respiratory and cardiovascular problems are frequently diagnosed and they become a major public health problem in the country. As consequence, Senegal government has deployed six fixed stations measurement center. Nevertheless, they are not well geographically distributed, do not take account driving style, driving conditions, and consider only a few gaseous pollutants. In this paper, we present a low-cost solution based on wireless sensor networks for real-time air quality monitoring in Dakar. The system consists of carbon monoxide (CO) sensors, carbon dioxide sensors CO
₂
and particulate matter detectors (PM10, PM 2,5, PM1). We aim to take into account more specific metrics to evaluate air quality and implement a hybrid measurement kit which can be fixed as landmarks or mobile. Indeed, the mobile kit is embedded in cars which travel across cities. The implemented kit is able to transmit collected data by LoRa protocol or cellular network to a Web application for visualization.