Because of industrial development, environmental pollution has become worse, especially air pollution. So, every city or county’s Environmental Protection Bureau promoted air pollution control projects. There are a lot of construction projects in Changhua county. Changhua county’s Environmental Protection Bureau promoted the “Construction Engineering Pollution control program” to reduce the pollution from the construction projects, in order to provide a better environment for the citizens. The program included the training of the workers on the construction projects to reduce the air pollution and the education of the citizens about the air pollution. We analyzed the results of auditing the construction projects, in order to provide recommendations to the Environmental Protection Bureau. There were three control plans in this program. They were the air quality improvement plan, cable and pipe installation control plan and the 2011 National Games in Changhua control plan. We executed these three plans successfully, and improved the air quality.

Changhua;Construction engineering;Pollution control