1. Essential elements for human health Ultimate element source is the Earth

2. Dante Scarpelli and John Craighead, 1985 Nature, it seems, has a limited repertoire of strategies and appears to be governed by the same principles at every level of organization.

3. Paracelsus, 1538 All substances are poison; it is the dose that differentiates a poison from the remedy

4. Geology and Human Health Overarching Themes: What? Plumlee and Zeigler, 2003 SOURCESTRANSFORMATION + TRANSPORT Air Water Sediments Biosphere EXPOSURE + HEALTH EFFECTS

5. Geogenic sources: mineralogy and geologic setting Asbestos hand specimen and fiber in lung tissue Wells with high concentrations of uranium in Michigan’s Upper Peninsula

6. Anthropogenic sources Agricultural activities Industrial discharges to land, water and air

7. Accumulation and transformation in soils and sediment

8. Transport in air and water

9. Air transport: advection and dispersion

10. Water transport Ground Water Flow Direction Plume Migration Dense Nonaqueous Phase Liquid DNAPL Sediment transport in streams Sediment deposition

11. Exposure: In the end, we are what we eat (and drink and breathe)

12. Exposure and Risk

13. Geology and Human Health Overarching Themes: Who and Where? Undergrads, general education courses Undergrad majors, introductory courses Undergrad majors, upper level courses Advanced students, interdisciplinary courses Adult learners, outreach/extension programs Others???

14. Geology and Human Health Overarching Themes: How? Lectures Labs Case studies Novel interactive exercises Web based courses and exercises Other???