Kim, YP Moon, KC Shim, SG Lee, JH Kim, JY Fung, K Carmichael, GR Song, CH Kang, CH Kim, HK Lee, CB 2024-01-21T13:32:24Z 2024-01-21T13:32:24Z 2021-09-05 2000-10 1352-2310 https://pubs.kist.re.kr/handle/201004/141068 Organic carbon (OC) and elemental carbon (EC) in fine particles (PM2.5) at two background sites, Kosan and Kangwha in Korea were measured during intensive field studies between 1994 and 1999. Fine particles were collected on pre-fired quartz filters in a low-volume sampler and analyzed using the selective thermal oxidation method with MnO2 catalyst. The OC and EC concentrations at Kosan located at western tip of Cheju Island in southern Korea are lower than those at Kangwha located at western coastal area in mid-Korean peninsula. Still, the OC concentrations at Kosan are generally higher than those at other background areas in Japan and USA. The EC concentrations at Kosan are lower than ol comparable to those at other background areas. The total carbon (TC, sum of OC and EC) to EC ratio values at both sites were higher than those at other background areas in Japan and USA. At Kosan, the OC and EC concentrations when air parcels were from southern China were higher than those when air parcels were coming from northern China. However, at Kangwha, the differences were statistically not clear since most air parcels were from northern China. Except when air parcels were from the North Pacific during summer, the OC and EC concentrations are well correlated indicating that both OC and EC share the same emission/transport characteristics. From the gaseous hydrocarbon data and the OC and EC relationship, it was found that during summer local biogenic emissions of OC might be significant at Kosan. (C) 2000 Elsevier Science Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD CHEJU-ISLAND AEROSOL COMPOSITION PM(2.5) PM(10) Carbonaceous species in fine particles at the background sites in Korea between 1994 and 1999 Article 10.1016/S1352-2310(00)00189-8 1 ATMOSPHERIC ENVIRONMENT, v.34, no.29-30, pp.5053 - 5060 ATMOSPHERIC ENVIRONMENT 34 29-30 5053 5060 scie scopus 000165259600009 2-s2.0-0034287527 Environmental Sciences Meteorology & Atmospheric Sciences Environmental Sciences & Ecology Meteorology & Atmospheric Sciences Article; Proceedings Paper CHEJU-ISLAND AEROSOL COMPOSITION PM(2.5) PM(10) northeastern Asia long-range transport OC contributions TC/EC ratio