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ISSN : 1225-4517(Print)
ISSN : 2287-3503(Online)
Journal of Environmental Science International Vol.26 No.9 pp.1045-1055

Spatio-Temporal Characteristics of PM2.5 in Gyeongnam Province during 2015-2016

Zang-Ho Shon


Characterization of spatio-temporal variations in PM2.5 in Gyeongnam (GN) province during 2015-2016 was investigated to assess the air quality in this area in terms of fine particles. Yearly mean concentrations of PM2.5 ranged from 19.1 to 29.5 μgm-3. High concentrations of PM2.5 were observed in spring (21.2-30.3 μgm-3) and winter (20.2-30.3 μgm-3). Low concentrations of PM2.5 were generally observed in fall (16.2-23.2 μgm-3). PM2.5 concentration was highest in the morning (10 AM). The fractions of PM2.5 in PM10 were 0.51-0.62 and two were significantly correlated (r=0.779-0.830), suggesting common sources (fossil fuel combustion, mobile sources, etc). CO was significantly correlated with PM2.5 in highly urbanized areas such as the city of Changwon (CW, r=0.711), compared to other air pollutants (SO2, NO2, and O3), suggesting dominance of industrial combustion sources.