A review on newly designed mobile optical particle counters for monitoring of airborne particulate matter

With regard to the adverse and considerable effects on human health and environment, monitoring of air quality, specifically of particulate matters (PM), has received increased attention over the last decades. Due to the pressing request of air quality monitoring, the contribution of mobile, low cost and real-time PM detection devices is becoming more important. In recent years, researchers have proposed novel mobile optical particle counters (OPC) to meet the steadily increasing demand for real-time detection of PM, in both the indoor and outdoor environment. However, to the best of the authors' knowledge, the availability of review papers on newly developed mobile and compact PM emission measurement devices is fairly scarce. This paper aims to review the most recent advances in mobile optical particle counters (OPCs) for detection of the particulate matter.