Have there been any advances in technology in order to monitor silica dust in real time?

In the recent years, there has been an enhancement in the techniques used for the real time supervision  of RCS in the workplaces. The AIR XS Silica Monitor for instance has adopted Optical Refraction Technology  (ORT) to detect and quantify RCS particles in real time thus allowing for quick intervention of high hazardous  silica dust levels.
 These real-time monitoring solutions improve the protection of workers through the provision of real  time information thus enabling the institution of early corrective measures to minimise on exposure risks. This is a great  improvement as compared to the conventional methods that require some time to process the samples in the laboratory.