Point and Non-point Sources. Pollution: Point and Non-Point Point Source Pollution This source of pollution is easily identified and flows from specific.

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Presentation transcript:

Point and Non-point Sources

Pollution: Point and Non-Point Point Source Pollution This source of pollution is easily identified and flows from specific points. Examples: Industrial plant Sewage Treatment Plant Storm Water Drain

Non-point Source Pollution …does not result from a specific single location, but generally results from land runoff or drainage.

Non-point source examples Human activities in a neighborhood (washing cars, fertilizing lawn, spilling wastes) Farms in a rural setting Cows and livestock in a large area Highways/parking lots

Enviro-Scape 1. Color all of the water blue. 2. Answer the questions on the second page regarding examples of point and non-point pollution. 3. Come up with ways to reduce non-point pollution.

Start working to answer the questions and color code the map on the back!

Questions about Worksheet 1. How is the image on the worksheet a model of a watershed? Answer: The water that moves across or under the land in this model all flows into one common body of water.

2. Types of pollution: Pick three for each. A. Point Source Industrial plant Sewage plant Storm Pipe flowing into the ditch. B. Non-point Source Any three of the following: Farm Residential Neighborhood Parking Lot Construction site Golf Course Cows

Preventative Solutions How could we reduce the impact of some of the nonpoint pollution sources? Any of the following three; 1. Silt fence (around construction site) filters sediment 2. Containment fence around cows eliminates cows from walking in water 3. Plant trees along the banks of the lake or river filters runoff; absorbs excess nutrients, and slows down runoff.