1. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings PowerPoint ® Lecture Slide Presentation prepared by Christine L. Case M I C R O B I O L O G Y a n i n t r o d u c t i o n ninth edition TORTORA  FUNKE  CASE Part B 27 Environmental Microbiology

2. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Biofilms Figure 27.11

3. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Freshwater Zonation Figure 27.12

4. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings FMNH 2 FMN + photon Luciferase Bioluminescence Figure 27.13, UN 27.1, UN 27.2

5. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Water Quality  Microbes are filtered from water that percolates into groundwater.  Some pathogens are transmitted to humans in drinking and recreational water.  Resistant chemicals may be concentrated in the aquatic food chain.  Mercury is metabolized by certain bacteria into a soluble compound, which is concentrated in animals.

6. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Waterborne Diseases Table 27.2 (1 of 2)

7. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Waterborne Diseases Table 27.2 (2 of 2)