TY - JOUR
T1 - Chemical characteristics of submicron aerosols observed at the King Sejong Station in the northern Antarctic Peninsula from fall to spring
AU - Lim, Saehee
AU - Lee, Meehye
AU - Rhee, Tae Siek
N1 - Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, Information, and Communications Technology & Future Planning (2017R1A2B4012143). S. Lim thanks the support by the Basic Science Research Program of NRF and the Ministry of Education (2015R1A6A3A01061393 and 2016R1D1A1B03934532). T. S. Rhee appreciates financial support from Korea Polar Research Programs (PM19050, PE19150, and PM14070).
Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, Information, and Communications Technology & Future Planning ( 2017R1A2B4012143 ). S. Lim thanks the support by the Basic Science Research Program of NRF and the Ministry of Education ( 2015R1A6A3A01061393 and 2016R1D1A1B03934532 ). T. S. Rhee appreciates financial support from Korea Polar Research Programs ( PM19050 , PE19150 , and PM14070 ).
Publisher Copyright:
© 2019
PY - 2019/6/10
Y1 - 2019/6/10
N2 - The water-soluble ions and carbonaceous compounds of PM 1 were measured at the King Sejong Station (KSG) in the northern part of Antarctic Peninsula from March to November in 2009. As the sum of all measured species including organic matter [OM; organic carbon (OC)*1.9], the PM 1 mass reached a maximum of 936 ng m −3 with the mean of 686 ± 226 ng m −3 . The most abundant constituents were OM (389 ± 109 ng m −3 ) and sea-salts (Na + and Cl − , 193 ± 122 ng m −3 ), which comprised 85% of the PM 1 mass. In contrast, the contribution of SO 4 2− was below 1% and its depletion relative to Na + was prevalent particularly during winter, which was attributed to the frost flowers on newly formed sea-ice surface. The OC concentration was the highest in fall and its subcomponents OC2 and OC3 were moderately correlated with sea-salts (r = 0.5), indicating the marine biogenic source for OC. The elemental carbon (EC) concentration was much lower than OC, leading to the mean OC/EC ratio over 10. While the charred fraction of EC (EC1) was elevated by the long-range transport of biomass burning plume from nearby continent, the mass fraction of soot-EC (EC23) was increased concurrently with enhanced NO 3 − , suggesting EC23 as a good indicator for local influence in pristine environments like Antarctic region.
AB - The water-soluble ions and carbonaceous compounds of PM 1 were measured at the King Sejong Station (KSG) in the northern part of Antarctic Peninsula from March to November in 2009. As the sum of all measured species including organic matter [OM; organic carbon (OC)*1.9], the PM 1 mass reached a maximum of 936 ng m −3 with the mean of 686 ± 226 ng m −3 . The most abundant constituents were OM (389 ± 109 ng m −3 ) and sea-salts (Na + and Cl − , 193 ± 122 ng m −3 ), which comprised 85% of the PM 1 mass. In contrast, the contribution of SO 4 2− was below 1% and its depletion relative to Na + was prevalent particularly during winter, which was attributed to the frost flowers on newly formed sea-ice surface. The OC concentration was the highest in fall and its subcomponents OC2 and OC3 were moderately correlated with sea-salts (r = 0.5), indicating the marine biogenic source for OC. The elemental carbon (EC) concentration was much lower than OC, leading to the mean OC/EC ratio over 10. While the charred fraction of EC (EC1) was elevated by the long-range transport of biomass burning plume from nearby continent, the mass fraction of soot-EC (EC23) was increased concurrently with enhanced NO 3 − , suggesting EC23 as a good indicator for local influence in pristine environments like Antarctic region.
KW - Elemental carbon
KW - King Sejong Antarctic Station
KW - Organic carbon
KW - PM
KW - Sea-salt
UR - http://www.scopus.com/inward/record.url?scp=85062999345&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2019.02.099
DO - 10.1016/j.scitotenv.2019.02.099
M3 - Article
C2 - 31018470
AN - SCOPUS:85062999345
VL - 668
SP - 1310
EP - 1316
JO - Science of the Total Environment
JF - Science of the Total Environment
SN - 0048-9697
ER -
