Spatial variations in oxygen and hydrogen isotopes in waters and human hair across South Korea

Gautam, Mukesh Kumar; Song, Byeong-Yeol; Shin, Woojin; Bong, Yeon-Sik; Lee, Kwang-Sik

doi:10.1016/j.scitotenv.2020.138365

Cited by 21 publications

(21 citation statements)

References 36 publications

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“…The δ 18 O and δD, values of the surface water and groundwater were consistent with the local meteoric water line (LMWL) (Gautam et al, 2020) and global meteoric water line (GMWL) (Craig, 1961), while those of the natural and artificial (top 0-50 cm layer) snow samples deviated values from LMWL and GMWL (Figure 7). The bottom (25-50 cm) and top (0-25 cm) layer samples of the natural snow layers exhibited 5.13‰ difference in δ 18 O, which is likely suggests changes in the moisture source or the different timing of snow deposition.…”

Section: Isotopic and Chemical Compositions Of Snow Surface Water And Groundwatersupporting

confidence: 64%

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Variability in Soil Moisture by Natural and Artificial Snow: A Case Study in Mt. Balwang Area, Gangwon-do, South Korea

et al. 2022

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Soil moisture is an important variable for understanding hydrological processes, and the year-round monitoring of soil moisture and temperature reflect the variations induced by snow cover and its melt. Herein, we monitored the soil moisture and temperature in high (two sites) and low (two sites) elevation regions with groundwater sampling near the Mt. Balwang area in Gangwon-do, South Korea from Sep 2020 to May 2021. This study aims to investigate the temporal and spatial variations in soil moisture and temperature due to snow (natural and artificial snow) and its melt. A ski resort has been operating in this area and has been producing artificial snow during winter periods; thus, the spring snowmelt comprises both natural and artificial snow. The effect of soil freezing and thawing, wind conditions, vegetation covers, the timing and intensity of snow cover and snowmelt were differed in the monitoring sites. The high elevation sites 1 and 2 exhibit the relatively longer and consistent snow cover than the low elevation sites. Particularly, site 2 show late (May 8) snow melting even this site is in south slope of the Mt. Balwang. The relatively steady and moist soil layers at sites 1, 2, and 3 during the warm period can be considered as influential points to groundwater recharge. Moreover, the differences between the mean δ18O (−9.89‰) of the artificial snow layers and other samples were low: in the order of surface water (0.04‰) >groundwater (−0.66 and −1.01‰) >natural snow (1.34 and −3.80‰). This indicates that the imprint of artificial snow derived from surface water and with decreasing amount of natural snow around the Mt. Balwang region, the results support the assumption that the potential influence of artificial snowmelt on groundwater quality. This study helps to understand the snow dynamic and its influence on the hydrological processes in this region by combining the hydro-chemical and isotopic analysis.

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Section: Isotopic and Chemical Compositions Of Snow Surface Water And Groundwatersupporting

confidence: 64%

“…FIGURE 7 | δ 18 O and δD biplot of groundwater, artificial snow, natural snow, and groundwater with GMWL(Craig, 1961) and LMWL (GNIP data reported inGautam et al (2020)). …”

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confidence: 99%

Variability in Soil Moisture by Natural and Artificial Snow: A Case Study in Mt. Balwang Area, Gangwon-do, South Korea

et al. 2022

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“…There is an increased understanding of the spatial variations in stable isotope values of tap water across large geographical areas such as the conterminous United States 41 , 42 , Mexico 43 , France 44 , South Africa 13 , Korea 45 , and China 46 . However, very little is known for defined metropolitan areas and whether a single tap water oxygen value represents an entire city, especially those relying on multiple water sources.…”

Section: Introductionmentioning

confidence: 99%

Assessing the predictability of existing water-to-enamel geolocation models against known human teeth

Ueda

Bell

2021

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Stable isotope analysis of human tissues has become a valuable tool for mapping human geolocation. This study adds to the existing knowledge of the relationship between oxygen stable isotopes in human enamel and drinking water by presenting enamel oxygen values in clinic-extracted human dental enamel with known provenance. The results from this study indicate that the theoretical isotopic relationship between enamel and drinking water oxygen is weak at the city and country-level. Differences of up to 15‰ were observed between predicted drinking water oxygen values using existing models and observed values, highlighting the complexity of using water/enamel conversion equations. The lower isotopic boundary of enamel oxygen values is now understood for Metro Vancouver at δ18Oc(VPDB) = – 11.0‰ and presents the possibility of using stable isotope analysis as an exclusionary tool where individuals falling below threshold value can be identified as non-local. Overall, this study’s results support the development of geographical reference maps for human enamel oxygen.

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“…Isoscape studies focused on H and O values in water and hair have been conducted worldwide (e.g., [5,15]). Recently, Gautam et al [16,17] demonstrated that H and O isotope signatures in human hair can be used in provenance-and forensic-related activities, such as residential history and migration history in South Korea, based on a clear latitudinal gradient in isotope compositions. Their study demonstrated the predictive ability of H and O isoscapes to determine the regional origin of hair in South Korea.…”

Section: Introductionmentioning

confidence: 99%

“…The use of multi-isotopes from human tissues improves the predictive power of isoscapes [22]. Building from the recently published H and O isoscapes created using human hair samples from South Korea [16,17], we investigated spatial distributions of δ 13 C, δ 15 N, and δ 34 S values in human hair samples to extend the applicability of isotopes for human provenancing using a multi-isotope approach. We further investigated dietary heterogeneity and characterized the dietary patterns of contemporary Koreans using C, N, and S isotopes.…”

Section: Introductionmentioning

confidence: 99%

Dietary homogenization and spatial distributions of carbon, nitrogen, and sulfur isotope ratios in human hair in South Korea

et al. 2021

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Dietary homogenization has progressed worldwide due to westernization and the globalization of food production systems. We investigated dietary heterogeneity in South Korea by examining the spatial distribution of carbon (C), nitrogen (N), and sulfur (S) isotope ratios using 264 human hair samples. Overall, variation in isotope values was small, indicating low dietary heterogeneity. We detected differences in δ13C, δ15N, and δ34S values between administrative provinces and metropolitan cities; inter-regional differences were typically < 1 ‰. Values of δ34S were significantly lower in hair samples from inland regions relative to those from coastal locations, and a similar pattern was observed in δ15N values. Understanding geographic variation in δ34S and δ15N values in human hair is useful for provenancing humans in South Korea.

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Spatial variations in oxygen and hydrogen isotopes in waters and human hair across South Korea

Cited by 21 publications

References 36 publications

Variability in Soil Moisture by Natural and Artificial Snow: A Case Study in Mt. Balwang Area, Gangwon-do, South Korea

Variability in Soil Moisture by Natural and Artificial Snow: A Case Study in Mt. Balwang Area, Gangwon-do, South Korea

Assessing the predictability of existing water-to-enamel geolocation models against known human teeth

Dietary homogenization and spatial distributions of carbon, nitrogen, and sulfur isotope ratios in human hair in South Korea

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