Use of GIS to Identify and Delineate Areas of Fluoride, Sulfate, Chloride, and Nitrate Levels in the Woodbine Aquifer, North Central Texas, in the 1950s, 1960s, 1970s, 1980s, and 1990s Metadata
Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.
- Main Title Use of GIS to Identify and Delineate Areas of Fluoride, Sulfate, Chloride, and Nitrate Levels in the Woodbine Aquifer, North Central Texas, in the 1950s, 1960s, 1970s, 1980s, and 1990s
Author: Sanmanee, SirichaiCreator Type: Personal
Chair: Hudak, Paul F.Contributor Type: PersonalContributor Info: Major Professor
Committee Member: Ji, MinheContributor Type: PersonalContributor Info: Minor Professor
Committee Member: Lyons, Donald I.Contributor Type: Personal
Committee Member: Ferring, C. ReidContributor Type: Personal
Name: University of North TexasPlace of Publication: Denton, Texas
- Creation: 2001-08
- Digitized: 2007-07-09
- Content Description: ArcView and ArcInfo were used to identify and delineate areas contaminated by fluoride, sulfate, chloride, and nitrate in the Woodbine Aquifer. Water analysis data were obtained from the TWDB from the 1950s to 1990s covering 9 counties. 1990s land use data were obtained to determine the relationship with each contaminant. Spearman's rank correlation coefficients and Kruskal-Wallis tests were used to calculate relationships between variables. Land uses had little effect on distributions of contaminants. Sulfate and fluoride levels were most problematic in the aquifer. Depth and lithology controlled the distributions of each contaminant. Nitrate patterns were controlled mainly by land use rather than geology, but were below the maximum contaminant level. In general, contaminant concentrations have decreased since the 1950s.
- Library of Congress Subject Headings: Groundwater -- Pollution -- Texas -- Woodbine Aquifer.
- Library of Congress Subject Headings: Water quality -- Texas -- Woodbine Aquifer.
- Library of Congress Subject Headings: Geographic information systems.
- Keyword: GIS
- Keyword: gound water contamination
- Keyword: flouride sulfate
- Keyword: chloride
- Keyword: nitrate
- Keyword: north central Texas
Name: UNT Theses and DissertationsCode: UNTETD
Name: UNT LibrariesCode: UNT
- Rights Access: public
- Rights License: copyright
- Rights Holder: Sanmanee, Sirichai
- Rights Statement: Copyright is held by the author, unless otherwise noted. All rights reserved.
- Thesis or Dissertation
- OCLC: 51225737
- Archival Resource Key: ark:/67531/metadc2869
- Degree Name: Master of Science
- Degree Level: Master's
- Degree Discipline: Applied Geography
- Academic Department: Department of Geography
- Degree Grantor: University of North Texas