1. Water Pollution
Water pollution is the addition of any substance that _____________ effects the water and living things in the water. The amount of ____________ water depends on the quality of the water.
Examples of water pollution include: treated _____________, runoff, toxic chemicals, municipal _________, motor oil from cars, _____________, detergents, ______________,
Top 7 Superfund Sites

2. Freshwater Pollutants
Kind of Pollutants
Examples
Sources
Disease causing organisms
E. coli, Giardia, bacteria
Human and animal waste, runoff from farms
Pesticides and fertilizers
DDT, nitrates, phosphates
Agricultural and residential runoff
Industrial chemicals
PCB’s, Carbon tetrachloride
Industrial effluent/ waste
Metals
Lead, Mercury, Copper
Petroleum products
Oil, Gasoline
Road runoff,

3. Water Pollution
____________ pollution is the number one cause of water pollution in _________ rivers. What would cause sediment runoff?
______________________________
How would sediment harm the water quality?
_________________________________
______________ describes any waste material
discharged into the environment.
When _________ is deposited in water, _________ particles settle to bottom and the concentration of the chemical is diluted by the water. Water naturally ________ itself through the water cycle & filtration through wetland environments.
When too much __________ waste that is high in _________ & ________________ enter the water, algae can begin to grow uncontrollably due to the “nutrient” matter.
_______________ occurs when the lake or pond or stream is overtaken by algae. It has a “green scum” covering the surface and chokes out oxygen from entering the water for fish and thus fish kills can occur.

4. Eutrophication

5. Water Pollution Point source vs. non-point source
Pollution from a ________ ____________ such as pipes dumping toxic waste into a river. Controlled by legislation such as the ________________ , passed by Congress in 1970.
Pollution that does _________ come from a single source such as runoff.
The ______________ amount of water pollution.
No one claims ___________________ _______

6. Point source or Non-point source
Point sources ______________ treatment facilities ___________ pipes _______ Spills _______________ ___________________________ Non-point sources ______________________ Now you decide! Is it point or non-point ?

7. 3- 2-1- Summarize Write 3 different types of pollutants.
Compare the two sources of pollution (point and nonpoint).
Write one definition water pollution.

8. A River Runs Through It

9. Point or NonPoint??
Read your scenario. Can you determine if it is a point source or a nonpoint source?
Scenario #1
Scenario #2
Scenario #3
Scenario #4
Scenario #5
Scenario #6
Scenario #7
What are some potential solutions?

10. Biomagnification
When ____________ enter the environment through ____________ or ______ water, they can enter the food chain.
First level producers __________ the chemical, then the first level ___________ eat the producer and ________ ________ of the chemical. At each level of the food chain, _______ of the chemical is absorbed and the impact on the organism is _______________.