United States Department of Transportation
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Construction activity, emissions, and air quality impacts : real-world observations from an Arizona road-widening case study.
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2010-10-22
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[PDF-4.21 MB]
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NTL Classification:NTL-ENERGY AND ENVIRONMENT-Air Quality;NTL-ENERGY AND ENVIRONMENT-Environment Impacts;
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Abstract:The Arizona Department of Transportation (ADOT) sponsored this investigation, a field
study of emissions and air quality impacts generated from a road widening project, to gain
insight into construction-related emissions of particulate matter (PM), the near-road pollutant
concentration impacts that result from those emissions, and opportunities to mitigate potential
impacts. Although the study focused on assessing PM less than 2.5 microns in diameter (PM2.5),
the research program yielded insight into other pollutants related to construction activities,
including larger particles (PM10), carbon dioxide (CO2), oxides of nitrogen (NOx, NO, and NO2),
and black carbon (BC).
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