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2007
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In the Laboratory
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Geographical Information Systems (GIS) Mapping of Environmental Samples across College Campuses
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Kathleen L. Purvis-Roberts, Harriet P. Moeur, and Andrew Zanella
Department of Joint Science, Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA 91711
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October 2007
Vol. 84 No. 10
p. 1691
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| Abstract |
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In this laboratory experiment, students take environmental samples at various locations around the college campuses, take geospatial coordinates with a global position systems (GPS) unit, and map their results on a geo-referenced campus map with geographical information systems (GIS) software. Nitrogen dioxide air pollution sampling is used as an example, although other environmental studies could be mapped as well. In addition, students compare their results to those observed by governmental agencies, such as the Environmental Protection Agency. By studying spatial differences in pollutant concentrations, both indoors and out, and comparing their data to that observed by governmental agencies, students can begin to understand variability and the geospatial relationships in environmental sampling.
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| Supplement |
A detailed description for taking a point sample with the Gecko 201 GPS along with instructions for data entry into the Excel spreadsheet and mapping the NO2 concentrations on the campus map are available.
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| More Information |
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Citation |
Purvis-Roberts, Kathleen L.; Moeur, Harriet P.; Zanella, Andrew. J. Chem. Educ. 2007, 84, 1691.
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Keywords |
Applications of Chemistry; Atmospheric Chemistry; Environmental Chemistry; First-Year Undergraduate / General; Gases; Hands-On Learning / Manipulatives; Laboratory Computing / Interfacing; Laboratory Instruction; UV-Vis Spectroscopy
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History |
Created:
Last Updated: |
8/20/2007
9/7/2007
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 Caution! | | Experiments, laboratory exercises, lecture demonstrations, and other descriptions of the use of chemicals, apparatus, instruments, computers, and computer interfaces are presented in the Journal of Chemical Education as illustrative of new or improved ideas or concepts in chemistry instruction and are directed at qualified teachers. Although every effort is made to assure and encourage safe practices and safe use of chemicals, the Journal of Chemical Education cannot assume responsibility for uses made of its published materials. Many chemicals are hazardous. Precautions for the safe use of hazardous chemicals and directions for their proper disposal are described in the Material Safety Data Sheets and on the labels. We strongly urge all those planning to use materials from our pages to make choices and to develop procedures for laboratory and classroom safety in accordance with local needs and situations. |
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