TY - JOUR
T1 - Biogenic emission of dimethylsulfide from a highly eutrophicated coastal region, Masan Bay, South Korea
AU - Lee, Gangwoong
AU - Kahng, Sung Hyun
AU - Oh, Jae Ryoung
AU - Kim, Kyung Ryul
AU - Lee, Meehye
N1 - Funding Information:
Authors thank E. Lee, E. Yoo, J. Park, Y. Park, B. Kang, and C. Oh for their hard work in field experiment and laboratory. This work benefited greatly from collaboration with Hankuk University of Foreign Studies and Korea University. It is a pleasure to acknowledge the support of the Ministry of Science and Technology (99ST-D-1) and the Korea Science and Engineering Foundation (KOSEF) through the Advanced Basic Research Laboratory (ABRL) program (R14-2002-049-01003-0).
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2004/6
Y1 - 2004/6
N2 - Atmospheric dimethylsulfide (DMS), water-soluble ionic species in aerosol such as non-seasalt sulfate and methanesulfonic acid (MSA), and seawater DMS were measured in highly eutrophicated Masan Bay, Korea in July-August 1997. Mean (median) concentrations of atmospheric DMS, seawater DMS, non-seasalt sulfate, and MSA during the experiment were 188pptv (49pptv), 6.3nM (5.3nM), 3.0μgm-3 (2.3μgm-3), and 0.010μgm-3 (0.008μgm-3), respectively. The vertical profiles of seawater, especially in inner bay, reveal that DMS concentrations were enhanced near the bottom coincidently with extremely low levels of chlorophyll-a and depleted oxygen. There were several episodes of high DMS mixing ratios up to a few ppbv, which was associated with strong wind and elevated DMS but very low chlorophyll-a and relatively low dissolved oxygen contents in the surface water. It indicates that DMS accumulated in anoxic bottom water was often transferred to the overlying water column, consequently leading to elevated DMS in the atmosphere. The mean (median) molar ratio of MSA to non-seasalt sulfate was 0.41% (0.30%), which implies the major contribution of anthropogenic SO 2 to sulfur budget in the study area. The median flux of DMS from sea to air was estimated to 3.2μmm-2d-1.
AB - Atmospheric dimethylsulfide (DMS), water-soluble ionic species in aerosol such as non-seasalt sulfate and methanesulfonic acid (MSA), and seawater DMS were measured in highly eutrophicated Masan Bay, Korea in July-August 1997. Mean (median) concentrations of atmospheric DMS, seawater DMS, non-seasalt sulfate, and MSA during the experiment were 188pptv (49pptv), 6.3nM (5.3nM), 3.0μgm-3 (2.3μgm-3), and 0.010μgm-3 (0.008μgm-3), respectively. The vertical profiles of seawater, especially in inner bay, reveal that DMS concentrations were enhanced near the bottom coincidently with extremely low levels of chlorophyll-a and depleted oxygen. There were several episodes of high DMS mixing ratios up to a few ppbv, which was associated with strong wind and elevated DMS but very low chlorophyll-a and relatively low dissolved oxygen contents in the surface water. It indicates that DMS accumulated in anoxic bottom water was often transferred to the overlying water column, consequently leading to elevated DMS in the atmosphere. The mean (median) molar ratio of MSA to non-seasalt sulfate was 0.41% (0.30%), which implies the major contribution of anthropogenic SO 2 to sulfur budget in the study area. The median flux of DMS from sea to air was estimated to 3.2μmm-2d-1.
KW - Anoxic bottom water
KW - Bay
KW - Biogenic emissions
KW - DMS
KW - Dimethylsulfide
KW - Flux
KW - MSA
KW - Non-seasalt sulfate
KW - Reduced sulfur compounds
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U2 - 10.1016/j.atmosenv.2004.01.044
DO - 10.1016/j.atmosenv.2004.01.044
M3 - Article
AN - SCOPUS:2542474949
VL - 38
SP - 2927
EP - 2937
JO - Atmospheric Environment
JF - Atmospheric Environment
SN - 1352-2310
IS - 18
ER -
