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Related Experiment Videos

Geostatistics and GIS: tools for characterizing environmental contamination.

Shannon L Henshaw1, Frank C Curriero, Timothy M Shields

  • 1Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.

Journal of Medical Systems
|September 16, 2004
PubMed
Summary

Geostatistics and GIS software were used to map 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (DDE) contamination at a Maryland Superfund site. This spatial analysis predicts DDE levels in residential areas, aiding environmental remediation efforts.

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Area of Science:

  • Environmental Science
  • Geostatistics
  • Spatial Statistics

Background:

  • 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (DDE) contamination poses risks at a Maryland Superfund site.
  • Residential development surrounding the site heightens concerns for community health and environmental remediation.
  • Geostatistics offers advanced spatial statistical methods for analyzing georeferenced environmental data.

Purpose of the Study:

  • To evaluate DDE contamination at a Superfund site in western Maryland.
  • To demonstrate a comprehensive geostatistical analysis approach using ArcGIS and R.
  • To predict DDE levels in unsampled areas, including residential zones.

Main Methods:

  • Application of geostatistical techniques for analyzing georeferenced environmental data.

Related Experiment Videos

  • Integration of ArcGIS software and the R statistical computing environment for spatial analysis.
  • Utilizing the kriging spatial regression method for DDE level prediction.

    • Main Results:

    • Spatial predictions of DDE contamination levels were generated for the Superfund site.
    • DDE levels were estimated at unsampled locations within and surrounding the residential areas.
    • The study provides a framework for comprehensive geostatistical analysis in environmental contamination studies.

    Conclusions:

    • Geostatistical analysis, integrated with GIS and R, effectively predicts DDE contamination.
    • This approach is crucial for environmental remediation and risk assessment in populated areas.
    • The findings support informed decision-making for the Superfund site's cleanup and future land use.