New search
download case
  • Overview
  • Teaching Notes
  • Answer Key
  • Comments/Replies

Get the Lead Out!

An Interdisciplinary Case Study



Co Authors:

Laurie LeBlanc
Chemistry Department
Cuyamaca College
laurie.leblanc@gcccd.edu

Robert Mazalewski
Department of Plant Sciences
University of California at Davis
rlmazalewski@ucdavis.edu

Jonathan Cook
Chemistry Department
Cuyamaca College

Jasmine King
Chemistry Department
Cuyamaca College

Abstract:

This case study, developed for a general chemistry course, is intended to teach students the interdisciplinary nature of environmental science. Students take on the role of environmental chemists.  Using atomic absorption spectroscopy, they test for lead contamination in groundwater samples taken from an old mining district in Lake County, Colorado. After researching remediation methods, students propose practical solutions to local soil contamination.

Objectives:
  • Understand the nature of mining operations and their effect on the environment.
  • Learn about the effects of unsafe levels of lead in the human body.
  • Understand the theory and application of atomic absorption spectroscopy in lead determination.
  • Learn about possible methods of remediating contaminated soil, in particular, phytoremediation.
Keywords: Lead; Pb; heavy metals; lead contamination; groundwater contamination; lead poisoning; EPA action levels; atomic absorption spectrophotometer; soil remediation; phytoremediation; environmental chemistry; mining; Leadville; Colorado
Topical Area: N/A
Educational Level: High school, Undergraduate lower division
Formats: PDF
Type/Method: Laboratory
Language: English
Subject Headings: Chemistry (General)   Environmental Science   Environmental Engineering  
Date Posted: 04/21/08
Date Modified: N/A
Copyright: Copyright held by the National Center for Case Study Teaching in Science, University at Buffalo, State University of New York. Please see our usage guidelines, which outline our policy concerning permissible reproduction of this work.

Teaching Notes


Case teaching notes are password-protected and access to them is limited to paid subscribed instructors. To become a paid subscriber, begin the process by registering here.

Teaching notes are intended to help teachers select and adopt a case. They typically include a summary of the case, teaching objectives, information about the intended audience, details about how the case may be taught, and a list of references and resources.

  Download Teaching Notes

Answer Key


Answer keys for the cases in our collection are password-protected and access to them is limited to paid subscribed instructors. To become a paid subscriber, begin the process by registering here.


  Get Answer Key
Thank you for this Case Study. It is very useful in the classroom to connect chemistry with every day. Also good for the environmental sciences.


Richard
Chemistry
Nation Ford High School
Fort Mill, SC 29715-1625
dunkler@fort-mill.k12.sc.us
10/14/2013
Several of the links in this case are dead (all the ones I tried). The case is of current interest, especially considering the Flint water case and Calumet soil case.


Ann Taylor

Wabash College
Crawfordsville
taylora@wabash.edu
9/5/2016

Editor’s Note: We have published at this point hundreds of case studies containing literally thousands of Internet links on our website. At the time a case is published, we confirm that all links to any Internet resources mentioned in the case or notes are functional, but we do not monitor the links thereafter or update them as they begin to "age," morph into something else, or disappear altogether. Like other publishers confronting this issue, we simply do not have the resources to go back and re-research cases whose links have become defunct to find alternate resources.

One option for us might be to remove cases with bad links, but we are loath to do this. Although links go bad, they are only one feature of a case study, and we believe that the material still has considerable value and should remain available for teachers to modify or update to suit their needs.

Instructors who encounter bad links in an older case have several options available to them:

  • The Internet Archive provides a valuable service that often can be used to recover website materials that no longer exist at their original address (see the Wayback Machine at http://www.archive.org/index.php; simply copy-and-paste in the old URL to see if you can recover the material).
  • Find alternate sources, new website, new links, and incorporate them into the version of the case that you teach. We have always encouraged modification of the cases in our collection. Updating them is part of that and we assume that this goes on. Sharing such updates or modifications on this comments page can be a useful service to others, and we strongly encourage it.








9/6/2016



Name:
Email:
Department:
Institution:
City State:
Comments:
security code
Enter Security Code: