Výsledky vyhledávání - "Soonyoung Yu"

Akademický článek

Identification of solid phase speciation of trace elements in dust dry deposition using focused ion beam and selected area electron diffraction

Autor: Pyeong-Koo Lee, Soonyoung Yu

Publikováno v: Journal of Trace Elements and Minerals, Vol 9, Iss , Pp 100174- (2024)

Background: Few studies have been conducted to identify solid phase speciation of trace elements within the interior of airborne particles, although the adverse effects of ambient particles are closely related to the speciation of toxic elements and

Externí odkaz: https://doaj.org/article/58fa8a9939ea47c9a8990ddb15e88939

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Akademický článek

Development of an integrated hydrochemical index for delineating livestock manure-derived groundwater plumes in agro-livestock farming areas

Autor: Jeong-Ho Lee, Seong-Taek Yun, Soonyoung Yu, Chang-Hoon Yoo, Yong-Seok Jeong, Kyoung-Ho Kim, Ho-Rim Kim, Hyunkoo Kim

Publikováno v: Ecological Indicators, Vol 138, Iss , Pp 108838- (2022)

To delineate a livestock manure-derived groundwater plume (LDGP) in agro-livestock farming areas with the extensive use of chemical fertilizers, multilevel monitoring wells (MLWs) were installed for depth-specific sampling of groundwater, and then hy

Externí odkaz: https://doaj.org/article/e48a5a9eb34c4d0888e3c812b6201528

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Akademický článek

Hydrochemical and Isotopic Difference of Spring Water Depending on Flow Type in a Stratigraphically Complex Karst Area of South Korea

Autor: Soonyoung Yu, Gitak Chae, Junseop Oh, Se-Hoon Kim, Dong-Il Kim, Seong-Taek Yun

Publikováno v: Frontiers in Earth Science, Vol 9 (2021)

Characterizing the subsurface flow in karstic areas is challenging due to distinct flow paths coexisting, and lithologic heterogeneity makes it more difficult. A combined use of hydrochemical, environmental isotopic, and hydrograph separation study w

Externí odkaz: https://doaj.org/article/1ac10bb5960c40159c0770ce54a971ce

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Akademický článek

Short-Term Monitoring of Geogenic Soil CO2 Flux in a Non-Volcanic and Seismically Inactive Emission Site, South Korea

Autor: Chan Yeong Kim, Soonyoung Yu, Yun-Yeong Oh, Gitak Chae, Seong-Taek Yun, Young Jae Shinn

Publikováno v: Frontiers in Earth Science, Vol 8 (2021)

Temporal changes of soil CO2 flux (FCO2) and soil CO2 concentration ([CO2]v) were surveyed in a natural CO2 emission site to characterize the factors controlling the short-term temporal variation of geogenic FCO2 in a non-volcanic and seismically ina

Externí odkaz: https://doaj.org/article/229a66b07ac44a53bb1ed66d20a07665

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Akademický článek

Hydrogeochemical Characteristics of Bottled Waters Sourced from Bedrock Aquifers in South Korea: Evaluation of Water Type and Natural Background Levels

Autor: Kyung-Jin Lee, Soonyoung Yu, Kyoung-Ho Kim, Kyoung-Gu Kang, Su-Hyung Moon, Moon-Su Kim, Seong-Taek Yun

Publikováno v: Water, Vol 14, Iss 9, p 1457 (2022)

The hydrogeochemical properties of bottled waters (n = 37) were examined to evaluate the factors governing their quality and to suggest the natural background levels (NBLs) of groundwater. The bottled waters were sourced from bedrock aquifers of vari

Externí odkaz: https://doaj.org/article/2cf772b5804948dc911dcf409b178eea

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Akademický článek

Hydrochemical Parameters to Assess the Evolutionary Process of CO2-Rich Spring Water: A Suggestion for Evaluating CO2 Leakage Stages in Silicate Rocks

Autor: Hyun-Kwon Do, Soonyoung Yu, Seong-Taek Yun

Publikováno v: Water, Vol 12, Iss 12, p 3421 (2020)

Eighteen water samples collected from eight CO2-rich springs in the northern part of the Gyeongsang sedimentary basin (GSB), South Korea showed distinct hydrochemistry, in particular, pH, total dissolved solids (TDS), and Na contents, and they were c

Externí odkaz: https://doaj.org/article/6635adcacfb64d44adff6fb494147978

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Akademický článek

Evaluation of Long-Term Impacts of CO2 Leakage on Groundwater Quality Using Hydrochemical Data from a Natural Analogue Site in South Korea

Autor: Hyun-Kwon Do, Seong-Taek Yun, Soonyoung Yu, Yon-Gyung Ryuh, Hyeon-Su Choi

Publikováno v: Water, Vol 12, Iss 5, p 1457 (2020)

Three hydrochemical types of CO2-rich water (i.e., Na-HCO3, Ca-Na-HCO3 and Ca-HCO3) occur together in the silicate bedrock (granite and gneiss) of Gangwon Province in South Korea. As a natural analogue of geological carbon storage (GCS), this can pro

Externí odkaz: https://doaj.org/article/af5ba5a06c42490c8bb6cf8775cdd29c

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