{"id":{"repo_id":"unt","oai_identifier":"info:ark/67531/metadc2510"},"canonical_url":"https://search.dev.ndltd.org/etd/unt/info:ark/67531/metadc2510","repository":{"repo_id":"unt","name":"University of North Texas","base_url":"https://digital.library.unt.edu/oai/"},"display":{"title":"Spatial Analysis of Atrazine in the Elm Fork Watershed","abstract":"This study assessed the water quality of the Elm Fork Watershed with regards to the herbicide Atrazine. Atrazine is a potential environmental endocrine disruptor and carcinogen. Overall, concentrations were lower than the four-quarter drinking water average of 3 µg/Lthe Maximum Contaminant Level set by the USEPA. However, three creek stations had four-quarter average concentrations greater than 3 µg/L, and virtually all samples exceeded the 0.1 µg/L standard set in Europe [1,2]. Statistically significant differences in concentrations were detected between the 27 sampling stations and areas of high concentrations were identified. However correlations between Atrazine concentrations and land-use and precipitation were not statistically significant. Further analysis with more detailed data should be conducted before any relationships are discarded.","abstract_html":"This study assessed the water quality of the Elm Fork Watershed with regards to the herbicide Atrazine. Atrazine is a potential environmental endocrine disruptor and carcinogen. Overall, concentrations were lower than the four-quarter drinking water average of 3 µg/Lthe Maximum Contaminant Level set by the USEPA. However, three creek stations had four-quarter average concentrations greater than 3 µg/L, and virtually all samples exceeded the 0.1 µg/L standard set in Europe [1,2]. Statistically significant differences in concentrations were detected between the 27 sampling stations and areas of high concentrations were identified. However correlations between Atrazine concentrations and land-use and precipitation were not statistically significant. Further analysis with more detailed data should be conducted before any relationships are discarded.","abstract_has_math":false,"creators":["Ochandio, Mario Roberto"],"institution":"University of North Texas","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Waller, William T.","Ji, Minhe","Atkinson, Samuel F."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2000,"date_issued":"2000-05","date_published":"2000-05","updated_at":"2026-07-24T05:34:52Z","subjects":["Water quality -- Texas -- Elm Fork Region.","Atrazine -- Texas -- Elm Fork Region.","Elm Fork Region (Tex.) -- Environmental conditions.","Elm Fork Watershed","water quality","atrazine","land-use","precipitation"],"languages":["English"],"rights":["Public","Copyright","Ochandio, Mario Roberto","Copyright is held by the author, unless otherwise noted. All rights reserved."],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["oclc: 47186285","untcat: b2300779","https://digital.library.unt.edu/ark:/67531/metadc2510/","ark: ark:/67531/metadc2510"],"render_values":[{"text":"oclc: 47186285","href":null,"code":true},{"text":"untcat: b2300779","href":null,"code":true},{"text":"https://digital.library.unt.edu/ark:/67531/metadc2510/","href":"https://digital.library.unt.edu/ark:/67531/metadc2510/","code":true},{"text":"ark: ark:/67531/metadc2510","href":null,"code":true}]}]},"links":{"outbound_url":"https://doi.org/10.12794/metadc2510","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Waller, William T.","Ji, Minhe","Atkinson, Samuel F."]},{"key":"dc:creator","label":"Author","values":["Ochandio, Mario Roberto"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2000-05"]},{"key":"dc:publisher","label":"Institution","values":["University of North Texas"]},{"key":"dc:type","label":"Dc Type","values":["Thesis or Dissertation"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Water quality -- Texas -- Elm Fork Region.","Atrazine -- Texas -- Elm Fork Region.","Elm Fork Region (Tex.) -- Environmental conditions.","Elm Fork Watershed","water quality","atrazine","land-use","precipitation"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]},{"key":"dc:rights","label":"Dc Rights","values":["Public","Copyright","Ochandio, Mario Roberto","Copyright is held by the author, unless otherwise noted. All rights reserved."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["oclc: 47186285","untcat: b2300779","doi: 10.12794/metadc2510","https://digital.library.unt.edu/ark:/67531/metadc2510/","ark: ark:/67531/metadc2510"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["This study assessed the water quality of the Elm Fork Watershed with regards to the herbicide Atrazine. Atrazine is a potential environmental endocrine disruptor and carcinogen. Overall, concentrations were lower than the four-quarter drinking water average of 3 µg/Lthe Maximum Contaminant Level set by the USEPA. However, three creek stations had four-quarter average concentrations greater than 3 µg/L, and virtually all samples exceeded the 0.1 µg/L standard set in Europe [1,2]. Statistically significant differences in concentrations were detected between the 27 sampling stations and areas of high concentrations were identified. However correlations between Atrazine concentrations and land-use and precipitation were not statistically significant. Further analysis with more detailed data should be conducted before any relationships are discarded."]},{"key":"dc:format","label":"Dc Format","values":["Text"]},{"key":"dc:title","label":"Title","values":["Spatial Analysis of Atrazine in the Elm Fork Watershed"]}]}],"canonical_facts":{"dc:contributor":["Waller, William T.","Ji, Minhe","Atkinson, Samuel F."],"dc:creator":["Ochandio, Mario Roberto"],"dc:date":["2000-05"],"dc:description":["This study assessed the water quality of the Elm Fork Watershed with regards to the herbicide Atrazine. Atrazine is a potential environmental endocrine disruptor and carcinogen. Overall, concentrations were lower than the four-quarter drinking water average of 3 µg/Lthe Maximum Contaminant Level set by the USEPA. However, three creek stations had four-quarter average concentrations greater than 3 µg/L, and virtually all samples exceeded the 0.1 µg/L standard set in Europe [1,2]. Statistically significant differences in concentrations were detected between the 27 sampling stations and areas of high concentrations were identified. However correlations between Atrazine concentrations and land-use and precipitation were not statistically significant. Further analysis with more detailed data should be conducted before any relationships are discarded."],"dc:format":["Text"],"dc:identifier":["oclc: 47186285","untcat: b2300779","doi: 10.12794/metadc2510","https://digital.library.unt.edu/ark:/67531/metadc2510/","ark: ark:/67531/metadc2510"],"dc:language":["English"],"dc:publisher":["University of North Texas"],"dc:rights":["Public","Copyright","Ochandio, Mario Roberto","Copyright is held by the author, unless otherwise noted. All rights reserved."],"dc:subject":["Water quality -- Texas -- Elm Fork Region.","Atrazine -- Texas -- Elm Fork Region.","Elm Fork Region (Tex.) -- Environmental conditions.","Elm Fork Watershed","water quality","atrazine","land-use","precipitation"],"dc:title":["Spatial Analysis of Atrazine in the Elm Fork Watershed"],"dc:type":["Thesis or Dissertation"]},"updated_at":"2026-07-24T05:34:52Z"}