POINTING TO THE SOURCE OF POLLUTION
Resources:
- Understanding Point vs. Nonpoint Source Water Pollution, National FFA (Future Farmers of
America) Organization,
Nonpoint source pollution generally results from land runoff, precipitation, atmospheric deposition, drainage, seepage or hydrologic modification. Nonpoint source (NPS) pollution, unlike pollution from industrial and sewage treatment plants, comes from many diffuse sources. NPS pollution is caused by rainfall or snowmelt moving over and through the ground. As the runoff moves, it picks up and carries away natural and human-made pollutants, finally depositing them into lakes, rivers, wetlands, coastal waters and ground waters.
Nonpoint source pollution can include:
Objective: This activity is designed to demonstrate to students what an average storm drain
collects during a rainfall event and how the water from storm drains can impact the water
quality and aquatic environments of local streams, rivers, and bays.
Discussion:
1. What types of pollution are natural?
2. What types of pollution are added by people living in the local communities?
3. How can we remove the pollution from the water?
4. What could be done to stop pollutants from entering storm drains?
Resources:
- Understanding Point vs. Nonpoint Source Water Pollution, National FFA (Future Farmers of
America) Organization,
Nonpoint source pollution generally results from land runoff, precipitation, atmospheric deposition, drainage, seepage or hydrologic modification. Nonpoint source (NPS) pollution, unlike pollution from industrial and sewage treatment plants, comes from many diffuse sources. NPS pollution is caused by rainfall or snowmelt moving over and through the ground. As the runoff moves, it picks up and carries away natural and human-made pollutants, finally depositing them into lakes, rivers, wetlands, coastal waters and ground waters.
Nonpoint source pollution can include:
- Excess fertilizers, herbicides and insecticides from agricultural lands and residential areas
- Oil, grease and toxic chemicals from urban runoff and energy production
- Sediment from improperly managed construction sites, crop and forest lands, and eroding streambanks
- Salt from irrigation practices and acid drainage from abandoned mines
- Bacteria and nutrients from livestock, pet wastes and faulty septic systems
- Atmospheric deposition and hydromodification
Objective: This activity is designed to demonstrate to students what an average storm drain
collects during a rainfall event and how the water from storm drains can impact the water
quality and aquatic environments of local streams, rivers, and bays.
Discussion:
1. What types of pollution are natural?
2. What types of pollution are added by people living in the local communities?
3. How can we remove the pollution from the water?
4. What could be done to stop pollutants from entering storm drains?
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