Characterization of PM₁₀and PM_2.5Mass Concentrations in Jinju

Abstract

Ambient particulate matters(PM10 and PM2.5) were investigated at GNTECH university in Jinju city. Samples were collected using a dichotomous sampler(series 240, Andersen Corp.) and a TEOM(Tapered Element Oscillating Microbalance) monitor period from November 2012 to October 2013. For the dichotomous sampler measurements, daily 24-h integrated PM2.5 and PM10-2.5 ambient air samples were collected at a total flow rate of 16.7 L /min. For the TEOM monitor measurements, daily 1-h integrated PM10 ambient air samples were collected at a flow rate of 16.7 L /min. The annual average concentrations of PM10-2.5 and PM2.5 by a dichotomous sampler were 10.0±6.1 μg/m 3 and 22.6±9.3 μg/m 3 , respectively. And PM10 concentration by dichotomous sampler were similar to TEOM monitor by 32.7±12.9 μg/m 3 and 31.7±11.3 μg/m 3 , respectively. And good correlation (R 2 =0.964) between the two methods was observed. The annual average of PM2.5/PM10 ratio was 0.70±0.12.