The Impact of Diamond Grind Pavement Resurfacing on PM10 Emissions
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2024-05-01
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Edition:Final Report
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Abstract:An assessment of tire-wear emissions was conducted to identify differences due to diamond ground and asphalt rubber asphalt concrete friction surfaces. The evaluation involved collecting representative aerosol samples from local freeways with both surface types under different meteorological conditions and with varying traffic conditions. The field study included 18 different measurement sample collections conducted at 12 sites. The amount of particulate matter was quantified using a thorough laboratory characterization process. No significant differences were observed in tire-wear emissions in the two studied surface types. The emissions at the sampling sites were also simulated using the Environmental Protection Agency’s Motor Vehicle Emission Simulator software. The experimentally determined emission factors for both surfaces were in the same range as those estimated for asphalt rubber asphalt concrete friction in the previous study conducted by the Arizona Department of Transportation, but significantly lower than the model’s simulated results.
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