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http://dx.doi.org/10.5572/ajae.2017.11.2.114

Temporal Variation of Atmospheric Radon-222 and Gaseous Pollutants in Background Area of Korea during 2013-2014  

Bu, Jun-Oh (Department of Chemistry and Cosmetics, College of Natural Sciences, Jeju National University)
Song, Jung-Min (Department of Chemistry and Cosmetics, College of Natural Sciences, Jeju National University)
Kim, Won-Hyung (Department of Chemistry and Cosmetics, College of Natural Sciences, Jeju National University)
Kang, Chang-Hee (Department of Chemistry and Cosmetics, College of Natural Sciences, Jeju National University)
Song, Sang-Keun (Department of Earth and Marine Sciences, College of Ocean Sciences, Jeju National University)
Williams, Alastair G. (Australian Nuclear Science and Technology Organisation)
Chambers, Scott D. (Australian Nuclear Science and Technology Organisation)
Publication Information
Asian Journal of Atmospheric Environment / v.11, no.2, 2017 , pp. 114-121 More about this Journal
Abstract
Real-time monitoring of hourly concentrations of atmospheric Radon-222 ($^{222}Rn$, radon) and some gaseous pollutants ($SO_2$, CO, $O_3$) was performed throughout 2013-2014 at Gosan station of Jeju Island, one of the cleanest regions in Korea, in order to characterize their background levels and temporal variation trend. The hourly mean concentrations of radon and three gaseous pollutants ($SO_2$, CO, $O_3$) over the study period were $2216{\pm}1100mBq/m^3$, $0.6{\pm}0.7ppb$, $211.6{\pm}102.0ppb$, and $43.0{\pm}17.0ppb$, respectively. The seasonal order of radon concentrations was as fall ($2644mBq/m^3$)$${\sim_\sim}$$winter ($2612mBq/m^3$)>spring ($2022mBq/m^3$)>summer ($1666mBq/m^3$). The concentrations of $SO_2$ and CO showed similar patterns with those of radon as high in winter and low in summer, whereas the $O_3$ concentrations had a bit different trend. Based on cluster analyses of air mass back trajectories, the air mass frequencies originating from Chinese continent, North Pacific Ocean, and the Korean Peninsula routes were 30, 18, and 52%, respectively. When the air masses were moved from Chinese continent to Jeju Island, the concentrations of radon and gaseous pollutants ($SO_2$, CO, $O_3$) were relatively high: $2584mBq/m^3$, 0.76 ppb, 225.8 ppb, and 46.4 ppb. On the other hand, when the air masses were moved from North Pacific Ocean, their concentrations were much low as $1282mBq/m^3$, 0.24 ppb, 166.1 ppb, and 32.5 ppb, respectively.
Keywords
Radon-222; Gaseous pollutants; Air mass pathway; Gosan station; Back trajectory;
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Times Cited By KSCI : 3  (Citation Analysis)
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