United States Department of Transportation
i
Highway Air Quality Impact Appraisals: Volume I - Introduction to Air Quality Analysis
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1978-06-01
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[PDF-20.72 MB]
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Edition:Final Report
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Abstract:This report is the first of a two volume series titled, "Highway Air Quality Impact Appraisals-Volume I, Introduction to Air Quality Analyses, and Volume II, Guidance for Highway Planners and Engineers." These two reports are intended to provide transportation planners and engineers with guidance on how to perform air quality analyses. Volume I presents basic information useful for analyzing local or regional air quality impacts. Subjects discussed include basic characteristics, sources, removal processes, and air quality standards for five pollutants--hydrocarbons, nitrogen oxides, sulfur oxides, particulates, and photochemical oxidants; emissons, control devices, and legislation on vehicular emissons; nonvehicular anthropogenic and natural soruces of those five pollutants; construction of emissions inventories; relative contributions of vehicular emissions to air quality at regional, urban, and roadway spatial scales; physical and chemical processes that affect pollutant concentrations; an assessment of types of air quality models, including algebraic (Gaussian), trajectory, and grid numerical models; and the design and use of air quality monitoring programs. The treatment of these issues is designed specifically for the highway planner or engineer who is required to perform air quality evaluations of transportation or land use plans. A glossary is included. Volume I may be useful as a general reference work, particularly on the subjects of emissions, atmospheric processes, and air quality models.
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