916 resultados para Air pollution.


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National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

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Transportation Department, Washington, D.C.

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Transportation Department, Office of Environmental Affairs, Washington, D.C.

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Cover title.

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Description based on: 78-013; title from cover.

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Chiefly tables.

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Principal investigators: Thomas J. Bierma, Daniel Swartzman.

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Prepared for Illinois Dept. of Energy and and Natural Resources, Office of Research and Planning; principal investigators: Patricia Szczepanik Van Leeuwen, William H. Hallenbeck.