Spatial relationship between well water arsenic and uranium in Northern Plains native lands

Sobel, Marisa; Sanchez, Tiffany R.; Zacher, Tracy; Mailloux, Brian J.; Powers, Martha; Yracheta, Joseph; Harvey, David; Best, Lyle G.; Bear, Annabelle Black; Hasan, Khaled; Thomas, Elizabeth; Morgan, Camille; Aurand, Dean; Ristau, Steve; Olmedo, Pablo; Chen, Rui; Rule, Ana M.; O’Leary, Marcia; Navas‐Acien, Ana; George, Christine Marie; Bostick, Benjamín C.

doi:10.1016/j.envpol.2021.117655

Cited by 14 publications

(19 citation statements)

References 36 publications

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“…Every private-well sample with detectable As and 92% of community C public-supply samples exceeded 5 μg L −1 . Also, consistent with previous findings, 34,93 the redox-reactive geogenic radionuclide U was detected (MCLG exceedance) in all three communities (A: 94%, B: 25%, and C: 20%). Drinkingwater U is associated with nephrotoxicity 107,108 and osteotoxicity 109 in humans, inhibition of DNA-repair mechanisms in human embryonic kidney 293 (HEK293) cells, 110 and estrogenreceptor effects in mice.…”

Section: Resultssupporting

confidence: 92%

“…Consistent with previous reports, 33 , 34 , 41 , 93 TW exposures to As, U, and Pb, which have no known safe level of drinking-water exposure for vulnerable sub-populations (MCLG zero), were widely observed (54, 43, and 20% of samples, respectively) in the three study areas in private- and public-supply locations ( Figure 2 ).…”

Section: Resultssupporting

confidence: 91%

“…As and U co-occurred in 16 (42%) of the 38 samples in which either was detected and were moderately positively correlated (Spearman ρ = 0.48, permutation [ n = 9999] p = 0.0002). Because groundwater As and U are favored under reducing and oxidizing conditions, respectively, frequent co-occurrence in SHWS well water suggests redox heterogeneity is common 34 or redox-independent mechanisms (e.g., pH/alkalinity-driven solubility) are important. 93 Elevated iron (Fe) and manganese (Mn) concentrations in oxic TW herein support the former.…”

Section: Resultsmentioning

confidence: 99%

“…As noted above, frequent co-occurrence in groundwater-sourced TW samples of redox-reactive inorganics, including those (e.g., As and U) mobilized under different redox conditions, is consistent with widespread well-water redox heterogeneity. 34 …”

Section: Resultsmentioning

confidence: 99%

“…31 The Strong Heart Study (SHS) is an ongoing populationbased prospective-cohort study of cardiovascular disease and associated risk factors among American Indian (AI) adults in participating Tribal Nations in Arizona, North Dakota, Oklahoma, and South Dakota. 32 Groundwater As varies regionally across the US, with elevated concentrations predicted and observed 16,17,33,34 throughout SHS areas. SHS research has associated low to moderate drinking-water As exposures with lung, prostate, and pancreatic cancer, 35 cardiovascular disease, 36 kidney disease, 37 lung disease, 38 and type-2 diabetes outcomes.…”

Section: Introductionmentioning

confidence: 99%

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Tapwater Exposures, Effects Potential, and Residential Risk Management in Northern Plains Nations

et al. 2022

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In the United States (US), private-supply tapwater (TW) is rarely monitored. This data gap undermines individual/community risk-management decision-making, leading to an increased probability of unrecognized contaminant exposures in rural and remote locations that rely on private wells. We assessed point-of-use (POU) TW in three northern plains Tribal Nations, where ongoing TW arsenic (As) interventions include expansion of small community water systems and POU adsorptive-media treatment for Strong Heart Water Study participants. Samples from 34 private-well and 22 public-supply sites were analyzed for 476 organics, 34 inorganics, and 3 in vitro bioactivities. 63 organics and 30 inorganics were detected. Arsenic, uranium (U), and lead (Pb) were detected in 54%, 43%, and 20% of samples, respectively. Concentrations equivalent to public-supply maximum contaminant level(s) (MCL) were exceeded only in untreated private-well samples (As 47%, U 3%). Precautionary health-based screening levels were exceeded frequently, due to inorganics in private supplies and chlorine-based disinfection byproducts in public supplies. The results indicate that simultaneous exposures to co-occurring TW contaminants are common, warranting consideration of expanded source, point-of-entry, or POU treatment(s). This study illustrates the importance of increased monitoring of private-well TW, employing a broad, environmentally informative analytical scope, to reduce the risks of unrecognized contaminant exposures.

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Section: Resultssupporting

confidence: 92%

Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tapwater Exposures, Effects Potential, and Residential Risk Management in Northern Plains Nations

et al. 2022

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The Sustainable Tapestry: Fusing Mainstream and Indigenous Insights for Healthy and Liveable Cities

Singh

2024

The Climate-Health-Sustainability Nexus

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Prioritizing water availability study settings to address geogenic contaminants and related societal factors

Erickson,

Brown,

Tomaszewski

et al. 2024

Environ Monit Assess

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Water availability for human and ecological uses depends on both water quantity and water quality. The U.S. Geological Survey (USGS) is developing strategies for prioritizing regional-scale and watershed basin-scale studies of water availability across the nation. Previous USGS ranking processes for basin-scale studies incorporated primarily water quantity factors but are now considering additional water quality factors. This study presents a ranking based on the potential impacts of geogenic constituents on water quality and consideration of societal factors related to water quality. High-concentration geogenic constituents, including trace elements and radionuclides, are among the most prevalent contaminants limiting water availability in the USA and globally. Geogenic constituents commonly occur in groundwater because of subsurface water–rock interactions, and their distributions are controlled by complex geochemical processes. Geogenic constituent mobility can also be affected by human activities (e.g., mining, energy production, irrigation, and pumping). Societal factors and relations to drinking water sources and water quality information are often overlooked when evaluating research priorities. Sociodemographic characteristics, data gaps resulting from historical data-collection disparities, and infrastructure condition/age are examples of factors to consider regarding environmental justice. This paper presents approaches for ranking and prioritizing potential basin-scale study areas across the contiguous USA by considering a suite of conventional physical and geochemical variables related to geogenic constituents, with and without considering variables related to societal factors. Simultaneous consideration of societal and conventional factors could provide decision makers with more diverse, interdisciplinary tools to increase equity and reduce bias in prioritizing focused research areas and future water availability studies.

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Spatial relationship between well water arsenic and uranium in Northern Plains native lands

Cited by 14 publications

References 36 publications

Tapwater Exposures, Effects Potential, and Residential Risk Management in Northern Plains Nations

Tapwater Exposures, Effects Potential, and Residential Risk Management in Northern Plains Nations

The Sustainable Tapestry: Fusing Mainstream and Indigenous Insights for Healthy and Liveable Cities

Prioritizing water availability study settings to address geogenic contaminants and related societal factors

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