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Checking for Pollution

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A common method of checking for pollution in a river is to measure the dissolved oxygen content in the river water at different locations. A reduction of oxygen content in the water from one location to another indicates the presence of pollution somewhere between the two locations. The Environmental Protection Agency (EPA) suspected that a small town was dumping untreated sewage into a river running through a town. Six random specimens of river water were taken at a location above town and five such specimens below the town. The dissolved oxygen readings, in parts per million, are shown below. Use alpha = .10 to see if the EPA should be concerned. Also, is the test dependent or independent?

Above Town Below Town

4.8 4.7 4.9 5.1

5.2 5.1 5.0 4.6

5.0 4.9 4.8

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Environmental Pollution Solution

My city is experiencing rapid growth in population. The City Council is worried that this pattern of population growth, combined with concerns over climate change, is beginning to create a number of negative environmental, economic, and social consequences. These include deteriorating infrastructure, increasing traffic congestion, declining air and water quality, and the loss of open space. The City Council has charged me with writing a report that will recommend measures to address the pollution issues and reduce carbon emissions.

What are some optimal decisions or suggestive measures for addressing the pollution management issue for pollution reduction?

· Pollution control legislation for point sources
· Random emission testing
· Encouraging alternative transportation, walking, and bicycle use
· Promoting fuel-efficient cars
· Establishing green spaces or urban forestry
· Improving roads
· Encouraging carpooling

From an environmental science and climate change perspective, What may be the potential effectiveness of any measures or Trade-offs?
Will ther be any potential improvements in human and ecosystem health.
What may be the potential balance between the effectiveness of measures and the public reaction towards them?

Please include any references used.

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