Quantifying the effectiveness of air quality mitigation measures.
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2011-01-01
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Abstract:Before Caltrans can deliver any transportation project, the potential air quality impacts from the operation
of the project must be disclosed in its environmental document. If the air emissions are deemed
significant or would contribute to a violation of one or more federal or state air quality standards, those air
quality impacts would need to be mitigated.
Caltrans is interested in compiling mitigation measures—and a quantification of their effectiveness—for
reducing the air quality impacts of emissions occurring during the operational phases of transportation
projects. Emissions of interest include mobile source air toxics, criteria pollutants like nitrogen dioxide,
carbon monoxide, sulfur dioxide, and lead (excluding greenhouse gases), and particulate matter from reentrained road dust and automobile tire and brake wear.
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