A5006341702- Isotope Analysis in Ecology
- Groundwater and Isotope Geochemistry
- Geology and Paleoclimatology Research
- Geochemistry and Elemental Analysis
- Methane Hydrates and Related Phenomena
- Marine and coastal ecosystems
- Geochemistry and Geologic Mapping
- Geological and Geochemical Analysis
- Water Quality and Pollution Assessment
- Radioactive contamination and transfer
- Heavy metals in environment
- Agriculture, Soil, Plant Science
- Radioactive element chemistry and processing
- Marine and Coastal Research
- Groundwater flow and contamination studies
- Analytical chemistry methods development
- Chemical Synthesis and Characterization
- earthquake and tectonic studies
- Hydrocarbon exploration and reservoir analysis
- Paleontology and Stratigraphy of Fossils
- Ecology and Conservation Studies
- Mercury impact and mitigation studies
- Radioactivity and Radon Measurements
- Archaeology and ancient environmental studies
- Atmospheric and Environmental Gas Dynamics
Jeonbuk National University
2025
Chonbuk National University Hospital
2025
Pukyong National University
2019-2024
Korea Basic Science Institute
2011-2020
Chungnam National University
2016-2019
Pusan National University
2013-2014
Busan National University of Education
2013
Korea University of Science and Technology
2013
Northwestern University
2009
Seoul National University
2003-2007
Abstract The use of lithium (Li) has dramatically increased during the last two decades due to proliferation mobile electronic devices and diversification electric-powered vehicles. Lithium is also prescribed as a medication against bipolar disorder. While Li can exert toxic effect on living organisms, few studies have investigated impact anthropogenic inputs levels in environment. Here we report concentrations isotope compositions river, waste tap water, industrial products from...
Abstract Background Silicate mineral weathering, particularly involving Mg-bearing minerals like hornblende and chlorite, plays a crucial role in the global geochemical cycle of magnesium. This process is intrinsically linked to carbon sequestration climate regulation. Mg isotopes offer valuable tool investigate complex interplay between silicate weathering. In this study, we aimed elucidate mechanisms extent isotope fractionation during dissolution chlorite under far–from–equilibrium...
Abstract Background The high reactivity of mafic minerals, such as olivine and pyroxene, plays a crucial role in controlling the global magnesium (Mg) flux its isotopic composition. This study investigates mechanisms extent Mg isotope fractionation during dissolution these minerals under far–from–equilibrium conditions. These findings provide valuable insights into behavior isotopes natural environments their potential geochemical proxy for understanding Earth's carbon cycle. Methods Mafic...
This study aimed to compare the cumulative incidence of ischemic stroke between patients with and without cancer, estimate hazard ratio in cancer compared those our results other nationwide studies. We recruited 91,424 diagnosed from Korean National Health Insurance Service database 2011 2015 enrolled 182,848 controls. These participants were followed up for 5 years. estimated ratios occurrence patient groups all types nine specific during follow-up at 6 months 1, 3, For types, except...
Enhanced chemical weathering in glacial regions, driven by climate change, is projected to increase the delivery of dissolved and particulate matter ocean, significantly disrupting biogeochemical cycles critical elements which exert a strong influence on global carbon cycle. This study investigates elemental Mg isotope geochemistry meltwater, suspended (SPM), bedrock samples from Ny-Âlesund, Svalbard, order elucidate link between processes variations within this environment....
Lithium has two naturally occurring isotopes, 6Li and 7Li, with approximate relative abundances of 7.5% 92.5%, respectively. Due to large Li isotope variations in nature, lithium isotopes have the potential reveal important information relevant nuclear technology, biomedicine, astrophysics, geochemistry. With advent multi-collector inductively coupled mass spectrometry (MC-ICP-MS), studies largely focused on analysis geological materials, varying degrees accuracy. However, this technique...
The geographical origin of agricultural products has been intensively studied, but links between and the environments are poorly established. Soils, water (streamwater groundwater), plants (hot pepper, Capsicum annuum; rice, Oryza sativa) were collected from all regions South Korea measured Sr isotope ratios ((87)Sr/(86)Sr). Sequential leaching soil showed that in exchangeable carbonate fractions (bioavailable) had a lower (87)Sr/(86)Sr ratio than silicate fraction, consistent with low...
Abstract Marine silicate weathering (MSiW) in anoxic sediments has been recently shown to be a significant sink for CO 2 generated by methanogenesis. Independently, the roles of clay dehydration (illitization) producing water and driving upward fluid advection have well established deep marine sediments, but date K + source required reaction not established. Here we present chemical strontium isotope properties pore fluids from seven cores Ulleung Basin, which show radiogenic 87 Sr/ 86 Sr...
In this study, surface water samples were collected at sites located in the lowest reaches of closed (Geum) (i.e. with an estuary dam river mouth) and open (Seomjin) systems between May 2016 2018. We analyzed concentrations stable isotopes particulate organic carbon (POC) dissolved (DOC) to assess OC sources, estimate fluxes riverine OC, some factors driving exports these two contrasting Korean systems. Our geochemical results suggest that contribution phytoplankton-derived POC total pool...
Magnesium is an important element in both the lithosphere and biosphere. Many previous studies have focused on directly tracing Mg cycles using isotopes, various methods for purification isotopic measurement been previously elucidated. Here, we present a newly developed separation method, along with verification of method by measuring isotope composition (expressed as δ26Mg relative to DSM-3) standard materials. All matrix cations causing significant mass bias were effectively removed...