Suisun Marsh Project

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Suisun Marsh Project

• Joshua P. Nideng
• Conductivity Scientist
• Fairfield Suisun USD
• Dover Middle School

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Objectives

• Essential Question Why do we want to protect our
  environment?
• Unit Question Is Suisun Marsh Healthy? Why or
  why not?
• Content Question How can conductivity indicate
  the health of Suisun Marsh?

http//ww4.fsusd.k12.ca.us/education/eettmarsh/ind
ex.htm
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Specific conductance

• Specific conductance is a measure of the ability
  of water to conduct an electrical current.
• It is highly dependent on the amount of dissolved
  solids (such as salt) in the water.
• Specific conductance is an important
  water-quality measurement because it gives a good
  idea of the amount of dissolved material in the
  water.

http//www.lavallab.com/images/conductivity-meter-
9033.gif
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Specific Conductance

• Conductivity is measured by placing two
  electrodes (with opposite electrical charge) in
  the water.
• The ease or difficulty of the flow of electrical
  current through liquids makes it possible to
  divide them into two broad categories
  electrolytes and nonelectrolytes.
• Units of conductivity micromhos/cm

http//www.facstaff.bucknell.edu/kirby/HydroLab.jp
g
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What effects conductivity?

• Conductivity levels changes with the tide.

http//www.phschool.com/science/planetdiary/jpeg04
/suisun.jpg
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Conductivity Levels
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Conclusion

• Specific conductance is a measure of the ability
  of water to conduct an electrical current.
• Specific conductance is highly dependent on the
  amount of dissolved solids (such as salt) in the
  water.
• The units of conductivity are micromhos/cm
• Conductivity ratings changes with the tide.
• Notice the bridge conductivity levels changed
  significantly between Jan.29 and Mar.15

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Bibliography

• http//ga.water.usgs.gov/edu/characteristics.html
  Conductance