A City‐wide Investigation of the Isotopic Distribution and Source of Tap Waters for Forensic Human Geolocation Ground‐truthing

Ueda, Momoko; Bell, Lynne

doi:10.1111/1556-4029.13319

Cited by 12 publications

(20 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the past decade, the spatial pattern and seasonal variability of stable isotope ratios in tap water has aroused attention in water resource studies, including regional water use and source diagnosis (e.g., Good et al, 2014;Jameel et al, 2016;Landwehr et al, 2014;Tipple et al, 2017;West et al, 2014). In addition, information on tap water isotope ratios has also been important in other fields including ecology, food, and forensic sciences (Bowen & Good, 2015;Ehleringer et al, 2008;Ueda & Bell, 2017).…”

Section: Introductionmentioning

confidence: 99%

Water Source Signatures in the Spatial and Seasonal Isotope Variation of Chinese Tap Waters

Wang

Zhang

Bowen

et al. 2018

Water Resources Research

View full text Add to dashboard Cite

Different water sources exploited for public use have different exposure to risks associated with climatic and environmental change. Isotope ratios of tap water have previously been studied as a potential tool to link public supply waters with water source characteristics at local to continental scales, providing information on the footprint of and potential risks associated with the water sources used. Work that combines intensive spatial and temporal sampling with independent water management data has been limited, however. In this study, an extensive observation network was established during 2014–2016 to provide monthly tap water sampling across China. We show that the spatial distribution of annual mean tap water isotope ratios is generally consistent with that of local precipitation across China. We identify seasonal correlation between tap water and precipitation isotope ratios in south China, where use of surface water is prevalent. In contrast, relatively invariant tap water isotope ratios elsewhere in China, which are not correlated with seasonal variation of precipitation isotope ratios, can be attributed to use of groundwater or water from river basins with longer storage times. The tap water isotope signatures identified here could be widely applied to characterize water supplies and associated sustainability challenges in different regions worldwide.

show abstract

Section: Introductionmentioning

confidence: 99%

Water Source Signatures in the Spatial and Seasonal Isotope Variation of Chinese Tap Waters

Wang

Zhang

Bowen

et al. 2018

Water Resources Research

View full text Add to dashboard Cite

show abstract

“…However, we note that measurements of the 87 Sr/ 86 Sr ratio of tap waters showed significant spatial and temporal variation in some locations (Table ). Previous studies have shown significant variation in the 87 Sr/ 86 Sr and other isotope ratios of tap water on the local scale due to water management practices . While the hair samples presented in Figure did not suggest travel movement based on the isotopic comparisons of the hair‐leachate pairs (i.e., difference in 87 Sr/ 86 Sr of pairs <0.00034), it is possible that spatial and temporal variation in the 87 Sr/ 86 Sr ratio of tap water added to the uncertainty in drawing geographic correlations between individuals and their environments.…”

Section: Resultsmentioning

confidence: 83%

“…Previous studies have shown significant variation in the 87 Sr/ 86 Sr and other isotope ratios of tap water on the local scale due to water management practices. 47,52,[65][66][67][68][69] While the hair samples presented in Given the known isotopic variability in water supply within some metropolitan areas, additional sampling resolution may be required in these locations to understand the geospatial relationships between the 87 Sr/ 86 Sr ratio of tap water and that of human hair.…”

Section: Relationships Between the Sr-isotope Ratios Of Hair And Tamentioning

confidence: 99%

Strontium isotope ratios of human hair from the United States: Patterns and aberrations

Tipple

Valenzuela

Chau

et al. 2019

Rapid Comm Mass Spectrometry

View full text Add to dashboard Cite

Rationale Strontium isotope ratios (87Sr/86Sr) of hair may be a valuable tool to estimate human provenance. However, the systematics and mechanisms controlling spatial variation in 87Sr/86Sr of modern human hair remain unclear. Here, we measure 87Sr/86Sr of hair specimens from across the USA to assess the presence of geospatial relationships. Methods Ninety‐eight human hair specimens were collected from salon/barbershop floors in 48 municipalities throughout the conterminous USA. [Sr] and 87Sr/86Sr ratios were measured from hair using quadrupole and multi‐collector inductively coupled plasma mass spectrometers, respectively. The [Sr] and 87Sr/86Sr ratios of hair were compared with the measured [Sr] and 87Sr/86Sr ratios of tap waters from the collection locations. In addition, the 87Sr/86Sr ratio of hair was compared with the modeled ratios of bedrock and surface waters. Results Hair color was independent of the 87Sr/86Sr ratio, but related to [Sr]. The 87Sr/86Sr ratios of hair and leachate were not statistically different and were positively correlated; however, in several hair‐leachate pairs, the ratios were conspicuously different. The 87Sr/86Sr ratios of both hair and leachate were linearly correlated with tap water. The 87Sr/86Sr ratio of hair was also significantly correlated with the modeled ratio of bedrock and surface waters, although the 87Sr/86Sr ratio of hair was most strongly correlated with the measured ratio of tap water. Conclusions The 87Sr/86Sr ratio of hair is related to the ratio of tap water, which varied geographically. The ratio of hair provided geographic information about an individual's recent residence. Differences in the 87Sr/86Sr ratios of hair and hair leachate may be concomitant with travel and could potentially be used as a screening tool to identify recent movements.

show abstract

“…As a whole, studies on isotopes in tap water are of great significance for enriching the understanding of tap water isotopes characteristics, environmental effect elements and water sources [23,24,39]. Stable isotopes (e.g., δ 2 H and δ 18 O) in tap water come to be important tools to understand the climate and environment characteristics in local area and water resources, monitor complex hydrological systems impacted by human activities, and reflect the state of regional water supply [24,43,44].…”

Section: Introductionmentioning

confidence: 99%

Stable Isotope Ratios in Tap Water of a Riverside City in a Semi-Arid Climate: An Application to Water Source Determination

Zhang

Wang

et al. 2019

Water

View full text Add to dashboard Cite

Stable isotopes (e.g., δ2H and δ18O) in tap water are important tools to understand the local climate or environment background, water sources and the state of regional water supply. Based on 242 tap water samples, 35 precipitation samples and 24 surface water samples gathered in the urban area of Lanzhou, the basic spatiotemporal characteristics of isotopes in tap water, their connection with isotopes in other water bodies and change during the process from raw water to tap water are discussed in detail, combining the information of local tap water supply and water source. It can provide reliable help for understanding the isotope characteristics of local tap water, regional water supply management and determination of tap water source of in a small area. Except for the establishment of a new data set of isotopes in tap water with complete time series and uniform spatial distribution of sampling sites, other results show that: (1) The Local Tap Water Line (LTWL) of Lanzhou is δ2H = (6.03 ± 0.57) δ18O + (−8.63 ± 5.44) (r2 = 0.41, p < 0.01). (2) For seasonal variations, δ2H and δ18O in tap water both are higher in autumn and lower in spring. The diurnal and daily variations of isotopes in tap water are not large. As for spatial variations, the monthly mean values of δ2H and δ18O in tap water at each sampling site show little difference. The isotopes in tap water collected from one single sampling site can be considered as a representative for isotopes in tap water in the area with a single tap water source. (3) Isotopes in tap water show weak connection with precipitation isotopes, but exhibit good connection (consistent seasonal variation, similar numerical range, small numerical difference and high correlation) with isotopes in surface water, which is the direct water source. Isotopes in water change little from raw water to tap water. Isotopic composition of tap water in Lanzhou can be used as a representative of isotopes in surface water.

show abstract

A City‐wide Investigation of the Isotopic Distribution and Source of Tap Waters for Forensic Human Geolocation Ground‐truthing

Cited by 12 publications

References 39 publications

Water Source Signatures in the Spatial and Seasonal Isotope Variation of Chinese Tap Waters

Water Source Signatures in the Spatial and Seasonal Isotope Variation of Chinese Tap Waters

Strontium isotope ratios of human hair from the United States: Patterns and aberrations

Stable Isotope Ratios in Tap Water of a Riverside City in a Semi-Arid Climate: An Application to Water Source Determination

Contact Info

Product

Resources

About