Importance of monsoon rainfall in mass fluxes of filtered and unfiltered mercury

DC Field Value Language 장지이 - 예보람 - 김태호 - 정주영 - 권영경 - 전선미 - 오철홍 - Abu Affan - 허수진 - Seunghee Han - 강도형 - 2020-07-16T15:51:47Z - 2020-07-16T15:51:47Z - 2020-02-11 - 2011-04-22 -
dc.identifier.uri -
dc.description.abstract We investigated the effects of the East Asian Summer Monsoon (EASM), which brings approximately half of Koreas annual rainfall in July, on the concentration and particle-water partitioning, and sources of Hg in coastal waters. Surface seawater samples were collected from eight sites in Gwangyang Bay, Korea, during the monsoon (July, 2009) and non-monsoon dry (April and November, 2009) seasons and the concentrations of suspended particulate matter, chlorophyll-a, and unfiltered and filtered Hg were determined. We found significant (p<0.05) increases in filtered Hg in the monsoon season (1.8±0.019 pM) compared to the dry season (0.62±0.047 pM). In contrast, the Hg concentrations associated with particles showed no significant differences (p>0.05) between the monsoon (459±141 pmol g-1) and the dry season (346±30 pmol g-1), which resulted in decreased particle-water partition coefficients of Hg in the monsoon season compared to the values in the dry season: 5.7±0.1 in April, 5.3±0.1 in July, and 5.8±0.1 in November. The annual Hg input to Gwangyang Bay was estimated at 64±6.6 mol yr-1 and 27±1.9 mol yr-1 for unfiltered and filtered Hg, respectively. The Hg discharged from rivers was a major source of Hg in Gwangyang Bay: the river input contributed 83±13% of total input of unfiltered and 73±6.0% of filtered Hg. On a monthly basis, unfiltered Hg input was 17±11 mol month-1 -
dc.description.uri 2 -
dc.language English -
dc.publisher 한국조류학회 -
dc.relation.isPartOf 제 25회 한국조류학회 학술발표대회 -
dc.title Importance of monsoon rainfall in mass fluxes of filtered and unfiltered mercury -
dc.type Conference -
dc.citation.conferencePlace KO -
dc.citation.endPage 28 -
dc.citation.startPage 28 -
dc.citation.title 제 25회 한국조류학회 학술발표대회 -
dc.identifier.bibliographicCitation 제 25회 한국조류학회 학술발표대회, pp.28 -
dc.description.journalClass 2 -
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Jeju Research Institute > Jeju Marine Research Center > 2. Conference Papers
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