Dissolved Uranium and Arsenic in Unregulated Groundwater Sources – Western Navajo Nation.
Saved in:
| Title: | Dissolved Uranium and Arsenic in Unregulated Groundwater Sources – Western Navajo Nation. |
|---|---|
| Authors: | Jones, Lindsey1 (AUTHOR), Credo, Jonathan2 (AUTHOR), Parnell, Roderic3 (AUTHOR), Ingram, Jani C.4 (AUTHOR) Jani.Ingram@nau.edu |
| Source: | Journal of Contemporary Water Research & Education. Apr2020, Vol. 169 Issue 1, p27-43. 17p. |
| Subject Terms: | *Drinking water standards, *Groundwater, *Uranium, *Arsenic, *Uranium mining, Western countries |
| Abstract: | Concentrations of dissolved uranium (U) and arsenic (As) above drinking water standards in unregulated water sources pose various human health risks. Although high natural background concentrations may occur in some environments (Runnells et al. 1992), anthropogenic contamination concerns are especially troublesome on the Navajo Nation (NN), where past U mining activity may have contaminated water supplies. This research investigated U and As groundwater contamination issues in unregulated wells in the western portion of the NN. Objectives of this research were to provide insights to human health risks by assessing the spatial extent and seasonal variability of U and As concentrations while effectively communicating the potential contamination risks to the local Navajo people. Eighty‐two unregulated wells were sampled in 2018; nine of these sources exceeded the maximum contaminant level (MCL) for drinking water standards for U (30 µg/L), and 14 exceeded the MCL for drinking water standards for As (10 µg/L). U and As levels were highest in the southwest portion of the study area and seasonal variability was observed in a subset of wells, especially shallower hand dug wells and hand pumps. The results were compiled into a report that was presented to NN chapters included in the study as well as the Navajo Department of Water Resources and the NN Environmental Protection Agency. Implications for regional water quality patterns can help to direct policy recommendations for well monitoring, water use, and remediation targets. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Contemporary Water Research & Education is the property of Universities Council on Water Resources and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | GreenFILE |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
|---|---|
| Header | DbId: 8gh DbLabel: GreenFILE An: 143547961 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Dissolved Uranium and Arsenic in Unregulated Groundwater Sources – Western Navajo Nation. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Jones%2C+Lindsey%22">Jones, Lindsey</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Credo%2C+Jonathan%22">Credo, Jonathan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Parnell%2C+Roderic%22">Parnell, Roderic</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ingram%2C+Jani+C%2E%22">Ingram, Jani C.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> Jani.Ingram@nau.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Contemporary+Water+Research+%26+Education%22">Journal of Contemporary Water Research & Education</searchLink>. Apr2020, Vol. 169 Issue 1, p27-43. 17p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Drinking+water+standards%22">Drinking water standards</searchLink><br />*<searchLink fieldCode="DE" term="%22Groundwater%22">Groundwater</searchLink><br />*<searchLink fieldCode="DE" term="%22Uranium%22">Uranium</searchLink><br />*<searchLink fieldCode="DE" term="%22Arsenic%22">Arsenic</searchLink><br />*<searchLink fieldCode="DE" term="%22Uranium+mining%22">Uranium mining</searchLink><br /><searchLink fieldCode="DE" term="%22Western+countries%22">Western countries</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Concentrations of dissolved uranium (U) and arsenic (As) above drinking water standards in unregulated water sources pose various human health risks. Although high natural background concentrations may occur in some environments (Runnells et al. 1992), anthropogenic contamination concerns are especially troublesome on the Navajo Nation (NN), where past U mining activity may have contaminated water supplies. This research investigated U and As groundwater contamination issues in unregulated wells in the western portion of the NN. Objectives of this research were to provide insights to human health risks by assessing the spatial extent and seasonal variability of U and As concentrations while effectively communicating the potential contamination risks to the local Navajo people. Eighty‐two unregulated wells were sampled in 2018; nine of these sources exceeded the maximum contaminant level (MCL) for drinking water standards for U (30 µg/L), and 14 exceeded the MCL for drinking water standards for As (10 µg/L). U and As levels were highest in the southwest portion of the study area and seasonal variability was observed in a subset of wells, especially shallower hand dug wells and hand pumps. The results were compiled into a report that was presented to NN chapters included in the study as well as the Navajo Department of Water Resources and the NN Environmental Protection Agency. Implications for regional water quality patterns can help to direct policy recommendations for well monitoring, water use, and remediation targets. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Contemporary Water Research & Education is the property of Universities Council on Water Resources and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=8gh&AN=143547961 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/j.1936-704X.2020.03330.x Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 27 Subjects: – SubjectFull: Drinking water standards Type: general – SubjectFull: Groundwater Type: general – SubjectFull: Uranium Type: general – SubjectFull: Arsenic Type: general – SubjectFull: Uranium mining Type: general – SubjectFull: Western countries Type: general Titles: – TitleFull: Dissolved Uranium and Arsenic in Unregulated Groundwater Sources – Western Navajo Nation. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Jones, Lindsey – PersonEntity: Name: NameFull: Credo, Jonathan – PersonEntity: Name: NameFull: Parnell, Roderic – PersonEntity: Name: NameFull: Ingram, Jani C. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 19367031 Numbering: – Type: volume Value: 169 – Type: issue Value: 1 Titles: – TitleFull: Journal of Contemporary Water Research & Education Type: main |
| ResultId | 1 |
