In recent years, as increasing levels of smog and sandstorms have affected cities around the world, the monitoring of the main contaminant in these hazes, particulate matter (PM), has become ever more important. Fine particulates, PM2.5 (sizes smaller than 2.5 μm), are of particular concern because once they are inhaled, they may result in serious health hazards due to their easy intrusion deep into the respiratory duct. Hence, it is imperative to accurately detect and measure their presence in air. In addition to a measurement technology based on manual sampling and the weighing of PM sample filters, in assistance with the Taiwan Environment Protection Agency, ITRI has further set up three field-performance evaluation platforms for the collocation comparison of candidate continuous PM mass concentration monitors. Two of them are located in south Taiwan, Tainan city and Kaohsiung city, and one is located in north Taiwan, Taipei city.
Applications & Benefits
These platforms are capable of performing collocation comparison of different instruments to check or verify their performances, with the aim of further ensuring the quality of the data and enhancing the forecast accuracy of air quality. Besides, CMS/ITRI also setup another platform, including field testing and lab testing, to do performance verification of air quality sensors, such as PM2.5, CO, CO2, and formaldehyde.