Monitoring Particulate Matters and Total Suspended Particles Along the Roadside and Public Area in Phnom Penh

Abstract This study aims to investigate the Total Suspended Particles (TSP) and Particulate Matter (PM) of exposed area vehicles emission along a boulevard (Russian Federation Boulevard/RFB) public park (Wat Phnom Historical Park/WP) in Penh as beneficial fact for passengers tourists air quality that they breathed in. present was carried out 8 hours per sampling, twice month, 2 months long (March April) 2022 by using high-volume sampler (HV, Shibata 500V) determine TSP Modified Nano-sampler (NS) define PM (TSP/PM10/PM2.5/PM1/PM0.1). Conforming results, highest percentage relative humidity found during sampling when it rained (97.30%) morning. Meanwhile, lowest only about 48.70% which hot afternoon. Additionally, RFB peak’s data accounted 234.04 μg/m 3 is beneath standard Royal Government Cambodia (RGC), 330 . Nevertheless, climax concentration fine ultrafine particles (PM2.5 PM0.1) wandered same had surprisingly stood an immensely high number 95.56 38.04 To summarize, low level ambient atmosphere not correlating less pollution since acquired results PM2.5 PM0.1 detected dominant disturb health respiratory system. Same thing happened WP tree-based site well.