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Impact of Fluoride Concentrations on Natural Waters throughout Texas

Impact of Fluoride Concentrations on Natural Waters throughout Texas. Mark Stehouwer GIS in Water Resources Fall 2013. Project Goal:.

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Impact of Fluoride Concentrations on Natural Waters throughout Texas

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  1. Impact of Fluoride Concentrations on Natural Waters throughout Texas Mark Stehouwer GIS in Water Resources Fall 2013

  2. Project Goal: • “To generate a visual medium by which fluoride contaminationof water sources in the state of Texas along with the impactedpopulationsand geographic regions can better be understood” Agenda: • Context and fluoride in water • Impacted regions/mapping • Connections with geography and hydrology 4. Project conclusions

  3. Fluoride in Water Debunking controversy and conspiracy EPA Limit [F] = 4 mg/L Benefits [F] < 1.5 mg/L Tooth Development Cavity Prevention Health Risks [F] > 2 mg/L - Pitting of teeth - Dental and/or skeletal fluorosis CPHA. 2013. FluorideActionNetwork, 2013. McGrady et al. BioMed Oral Health, 2012. Whyte et al. Amer. Jour. Med, 2005.

  4. Mapping Fluoride through GIS • Fluoride Data • Mapping and Processing • Basemaps • Thematic Maps

  5. Fluoride in SurfaceWaters

  6. Fluoride in SurfaceWaters

  7. Fluoride Regions for Surface and Ground Waters

  8. HydrologyResults • Regional ground water fluoride contours and major aquifer overlay • Regional surface water fluoride contours and major basin overlay

  9. US Census Data SW Fluoride > 2mg/L GW Fluoride > 2mg/L • County Level Population Density and Impacted Regions • [F] > 2mg/L

  10. Project Extensions and Conclusions • Northwest Texas has highest • potential for fluoride contamination • Station and fluoride data limitations • GIS provides framework for visualizing and identifying contaminant presence in natural environment • To do… • Find % Texas Population impacted by high fluoride

  11. Questions

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