1. Soap Runoff Effects on Algal Populations
Mike Trentadue
2008 PJAS
Central Catholic

2. Ground Runoff
Ground runoff is part of the water cycle and is when water runs across land formations.
It is caused when rain and excess water start to flow down hill.
During Ground Runoff the water can carry many pollutants such as…

3. Pollutants
Pesticides
Fertilizer
Litter
Oil and Gasoline Spills
Soap

4. Soaps
Soaps are a mixture of chemicals to form a cleaning agent that can be used to clean various surfaces.
The active ingredient in the to soaps to kill bacterial is Triclosan.
There are various types of soap including Antibacterial and Non Antibacterial.

5. Algae There are many different kinds of algae through out the world.
One of the most common being Euglena.

6. Euglena
Euglena is a common group of freshwater single celled organisms in the Kingdom Protista.
There are about 150 species of Euglena.
They produce their own food through photosynthesis.

7. Triclosan
Triclosan has been shown to be effective in reducing and controlling bacterial contamination on the hands.
Research has also show that the presence of Triclosan may influence the structure and function of algal communities in stream ecosystems.

8. My Hypothesis
Null: The growth rate of the algae contaminated with antibacterial soap WILL NOT exceed the growth rate of the control.
Alternate: The growth rate of the algae contaminated with the antibacterial soap WILL exceed the growth rate of the control.