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OPAL Air Survey

OPAL Air Survey. What is air?. Air is a mixture of gases Nitrogen 78.09%, Oxygen 20.95%, 1% other. Why is it important?. Life on earth. Animals. Plants. Humans. Humans. Inhale : Oxygen (O2). Exhale : Carbon dioxide (CO2). Air pollution. Sources :

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314 views • 19 slides

Federal Highway Administration

Federal Highway Administration. Brownfields, Waste Management, and Recycling. Brownfields, Waste Management and Recycling. FHWA Environmental Conference June 2004 Constance M. Hill Office of Natural and Human Environment. Presentation Overview. . Background

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206 views • 12 slides

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Less polluted - PowerPoint PPT Presentation

OPAL Air Survey

Federal Highway Administration