Temporal variability of atmospheric radon‐222 concentration at Gosan Station, Jeju Island, Korea, during 2009–2013

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dc.contributor.authorSong, JMen_AU
dc.contributor.authorKim, WHen_AU
dc.contributor.authorKang, CHen_AU
dc.contributor.authorLee, HYen_AU
dc.contributor.authorLee, CKen_AU
dc.contributor.authorChambers, SDen_AU
dc.contributor.authorWilliams, AGen_AU
dc.date.accessioned2025-10-27T22:05:54Zen_AU
dc.date.available2025-10-27T22:05:54Zen_AU
dc.date.issued2015-01-23en_AU
dc.date.statistics2025-10-01en_AU
dc.description.abstractAtmospheric radon‐222 (radon) measurements were made from 2009 to 2013 at the Gosan station of Jeju Island, one of the cleanest regions in Korea, in order to characterize the temporal variability (on diurnal, seasonal, and annual scales) and analyze the influence of changing air mass transport pathways on observed radon concentrations. The mean hourly radon concentration over the whole period was 2441 ± 1037 mBq/m3. The seasonal cycle of radon at the Gosan station was characterized by a fall maximum and summer minimum, consistent with a reduction in nonfrozen terrestrial fetch from fall to summer. In order, the seasonal mean radon concentrations were 2962 mBq/m3 (fall) >2907 mBq/m3 (winter) >2219 mBq/m3 (spring) >1756 mBq/m3 (summer). Based on a 5‐year composite, the maximum mean monthly radon concentration in October (3100 mBq/m3) was more than twice the July minimum (1471 mBq/m3). Diurnal composite radon concentrations for the whole period increased throughout the night to a maximum of 2788 mBq/m3 at around 7 a.m., and then gradually decreased to a minimum of 2050 mBq/m3 at around 3 p.m. The winter diurnal cycle had a small amplitude due to the low variability in atmospheric mixing depth associated with recent air mass fetch over the Yellow Sea. The diurnal cycle in summer, however, exhibited a relatively large amplitude due to changes in atmospheric mixing depth associated with recent fetch over Jeju Island. Back trajectory analysis showed that high radon events were typically associated with long‐term air mass fetch over continental Asia. Specifically, the average radon concentration of air masses originating from China was about 2.4 times higher than that of air masses originating from the North Pacific Ocean. © 1999-2025 John Wiley & Sons, Inc or related companies.en_AU
dc.identifier.citationSong, J.-M., Kim, W.-H., Kang, C.-H., Lee, H., Lee, C., Chambers, S., & Williams, A. G. (2015). Temporal variability of atmospheric radon-222 Concentration at Gosan Station, Jeju Island, Korea, during 2009–2013. Bulletin of the Korean Chemical Society, 36(2), 603–608. doi:10.1002/bkcs.10118en_AU
dc.identifier.issn0253-2964en_AU
dc.identifier.issn1229-5949en_AU
dc.identifier.issue2en_AU
dc.identifier.journaltitleBulletin of the Korean Chemical Societyen_AU
dc.identifier.pagination603-608en_AU
dc.identifier.urihttps://doi.org/10.1002/bkcs.10118en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/16674en_AU
dc.identifier.volume36en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherWileyen_AU
dc.subjectRepublic of Koreaen_AU
dc.subjectRadonen_AU
dc.subjectIslandsen_AU
dc.subjectAtmosphericsen_AU
dc.subjectPacific Oceanen_AU
dc.subjectSeasonal variationsen_AU
dc.subjectRadon 222en_AU
dc.subjectAtmospheresen_AU
dc.subjectAir pollution monitoringen_AU
dc.titleTemporal variability of atmospheric radon‐222 concentration at Gosan Station, Jeju Island, Korea, during 2009–2013en_AU
dc.typeJournal Articleen_AU
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