A real time portable embedded system design for particulate matter monitoring

The increasing awareness of negative health effects has raised significantly the importance of monitoring the levels of particulate matter which compose adverse respiratory problems particularly in the industrial belt. However the traditional particulate measuring instruments being bulky and expensive, prevent spatially deployed continuous air quality monitoring. This paper focuses on continuous monitoring of noxious suspended particulate matter for indoor as well as outdoor supervision, assisting individuals to have control over the immediate breathing environment. In this paper, a system has been presented which uses electronic sensors small enough to be incorporated into portable devices and therefore provide distributed measurement of parameters such as PM 2.5 and PM 10, and additionally ambient air temperature, atmospheric pressure and humidity measurements with appropriate levels of accuracy. The system is designed with an on-board graphical display and a buzzer alarm for hazardous situation intimation.