Fig. 1From: Electron microscopic and spectroscopic analysis of airborne ultrafine particles: its effects on the cell viabilityLocation of particulate matter collected in Republic of Korea. Particulate matter (PM) of this study was collected from Hyo-ja-dong (Kangwon National University, Chuncheon-si, Gangwon-do, Republic of Korea) with the location coordinate as 37°52′20.9′′ N 127°44′31.3′′ E. Here, Hyo-ja-dong area is shown as a general residential area in the university premises. Scale bar: 100 mBack to article page