Baek, Song-Yee Jurng, Jongsoo Chang, Yoon-Seok 2024-01-20T13:05:07Z 2024-01-20T13:05:07Z 2021-09-01 2013-01 1352-2310 https://pubs.kist.re.kr/handle/201004/128528 XAD-2 resin-based passive air samplers (PAS) were deployed for one year at eight cities in Mongolia, China, and South Korea to investigate the spatial distribution of polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), and dechlorane plus (DP). PCB levels were highly correlated with population size and density in China and South Korea. In Mongolia, PCB levels were relatively high considering the low population. In the cases of OCPs and DP, a country-specific distribution was observed. The highest levels of HCHs (hexachlorocyclohexane isomers) and DDTs (dichlorodiphenyl trichloroethane isomers) were detected at sites in China, whereas the highest endosulfan and DP levels were measured at South Korean sites. These results strongly reflected the patterns of use of these chemicals. Mirex, an insecticide never registered in Mongolia and South Korea, was detected at all sampling sites; this is likely to have resulted from long-range transport. Nevertheless, OCPs were generally low in Mongolia. This study confirms that PAS results reflect well the past and current usage of POPs in Northeast Asia. (C) 2012 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD PERSISTENT ORGANIC POLLUTANTS AIR ENDOSULFAN CONTAMINATION ENVIRONMENT ISOMERS USAGE CHINA PCBS Spatial distribution of polychlorinated biphenyls, organochlorine pesticides, and dechlorane plus in Northeast Asia Article 10.1016/j.atmosenv.2012.09.015 1 ATMOSPHERIC ENVIRONMENT, v.64, pp.40 - 46 ATMOSPHERIC ENVIRONMENT 64 40 46 scie scopus 000313539300005 2-s2.0-84867742364 Environmental Sciences Meteorology & Atmospheric Sciences Environmental Sciences & Ecology Meteorology & Atmospheric Sciences Article PERSISTENT ORGANIC POLLUTANTS AIR ENDOSULFAN CONTAMINATION ENVIRONMENT ISOMERS USAGE CHINA PCBS Persistent organic pollutants Polychlorinated biphenyls Organochlorine pesticides Dechlorane plus Passive air sampling Northeast Asia Long-range transport PCB-11