HR: 0830h
AN: A31D-0078    [PDF]
TI: Measurements of Toxic Trace Substances in Ambient Air of Gosan, Jeju in Korea
AU: * Ghim, Y
EM: ysghim@kist.re.kr
AF: Korea Institute of Science and Technology, 39-1, Hawolgok-dong, Seongbuk-gu, Seoul, 136-791 Korea, Republic of
AU: Kim, J
EM: jykim@kist.re.kr
AF: Korea Institute of Science and Technology, 39-1, Hawolgok-dong, Seongbuk-gu, Seoul, 136-791 Korea, Republic of
AU: Moon, K
EM: kcmoon@kist.re.kr
AF: Korea Institute of Science and Technology, 39-1, Hawolgok-dong, Seongbuk-gu, Seoul, 136-791 Korea, Republic of
AU: Han, J
EM: nierhan@me.go.kr
AF: National Institute of Environmental Research, Environmental Research Complex, Kyeongseo-dong, Seo-gu, Incheon, 404-170 Korea, Republic of
AU: Kim, Y
EM: yjkim@kjist.ac.kr
AF: Kwangju Institute of Science and Technology, 1, Oryong-dong, Buk-gu, Gwangju, 500-712 Korea, Republic of
AU: Yoon, S
EM: yoon@snu.ac.kr
AF: Seoul National University, San 56-1, Sillim-dong, Gwanak-gu, Seoul, 151-742 Korea, Republic of
AB: Atmospheric concentrations of persistent organic pollutants (POPs) and heavy metals have been measured at Gosan, Jeju in Korea twice a year since November 2001. Gosan is a representative background site in Korea and was a super site during ACE-Asia. Purposes of this work were to monitor the background concentrations of POPs and heavy metals in Korea and to assess the effect of long-range transport of these substances. Target substances were POPs in the Stockholm Convention and heavy metals as well as PAHs and PM2.5. Criteria pollutants and meteorological variables were monitored at co-located stations operated by the government. As of the end of August 2003, measurements have been made six times; each measurement period lasted about two weeks. The data analysis for the first two measurements was completed, whose preliminary results for POPs were presented at the last fall meeting (Eos. Trans. AGU, 83(47), Fall Meet. Suppl., Abstract A52B-0116, 2002). During the 1st measurement period in November 2001, high concentration of pollutants similar to that in urban areas was observed at Gosan. This high concentration was thought caused by emission from the nearby area. At the end of the 2nd measurement period in spring 2002, a large-scale Asian dust swept. However, concentration of major hazardous pollutants was lowered probably because of scavenging and dilution effects accompanied by Asian dust. In the 3rd measurement period, two typhoons exerted influences; one was direct and the other was indirect. In spite of large variation of the origin of air mass came to the site, pollutant concentration did not vary so much.
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0322 Constituent sources and sinks
DE: 0345 Pollution--urban and regional (0305)
DE: 0365 Troposphere--composition and chemistry
DE: 0368 Troposphere--constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting