Performance Evaluation of Low-Cost Particulate Matter Sensors for PM2.5 and PM10 Measurement

This paper presents the performance evaluation of low-cost particulate matter sensors (LCPMS) using light scattering technique. By creating a device for controlling sensors and measuring particulate matter with diameter of less than 2.5 microns (PM2.5) and 10 microns (PM10) for high- and low-concentration environments in a test chamber and for comparing with the average PM2.5 and PM10 of 1-hour and 24-hour continuous of Pollution Control Department (BAM1020) in February to June 2022. From the PM2.5 and PM10 results, it was found that LCPMS and BAM1020 are very strong correlation in the perfect positive. Correlation coefficient square (R2) and measurement error (EM) are decreased by decreasing sampler time of LCPMS detection. The average PM2.5 of 24-hour continuous of LCPMS_5 is very strong correlation with BAM1020 by R2 = 0.7786 and EM = 20.35. The average PM10 of 24-hour continuous of LCPMS_1 is very strong correlation with BAM1020 by R2 = 0.8662 and EM = 13.53.