Innovations An automatic continuous monitoring system for PM2.5 compositions
■Technology Introduction
This instrument is a high-efficiency PM2.5 particle collection and automatic chemical composition monitoring system. It collects PM2.5 by using a dry electrostatic precipitator to charge and capture particles which are then extracted by by using pulsed water jets into liquid samples. Finally, the liquid samples are analyzed for chemical compositions manually or automatically.
■Scientific Innovation
This system breaks through the difficulty of collecting PM2.5 particles into liquid samples by using the semi-dry electrostatic precipitator. It has lower instrument detection limits and higher accuracy for precursor gas monitoring than other commercial systems.
■This technology won the Futuretech Breakthrough Award in 2018 Future Tech Expo.


National Chiao Tung University
You-Lin Zhou/