Impact of Mobile Source Emission on Air Quality of East-Texas using EPS3 and CAMx

摘要

After analyzing the CAMx simulation output, it is found that almost every day of the episode exceeded the NAAQS for Ozone concentration except 16, 17 and 18th of June, 2006. Several days were found when ozone concentration exceeded 0.140 parts per million (ppm) in HGB and DFW area. From assessing Case "ALL" and Case "WOM", it is found that regardless of mobile source emissions for weekdays and weekend days ozone concentration exceeded 0.075ppm for both HGB and DFW area. Further analysis showed that DFW area ozone concentrations are more sensitive to mobile emissions than HGB area. In DFW area ozone formation is reduced by about 21% for case "WOM" whereas HGB area showed only 12% reduction.