"The Project of Air Pollution Petitions Inspecting Control of Changhua County in 2021" had begun from Jan.-1- 2021 to Dec.-31-2021. The results as below: 1. In order to increase the efficiency of air pollution petitioning cases execution, the executive team assists in inspecting, informing of public nuisance cases for 8,151 times. 2.The executive team implements funnel or borderline sampling and odor determination for 7 times, among which there is 1 result not complying with the standard. 3.To reinforce the inspecting technique of environmental inspector, the team carries out 5 training sessions. Through these training sessions, we can improve the capability, professional knowledge, skill of inspectors and executive staff of the plan.4.The team also help the calibration of inspecting equipment ＆ sampling devices. Furthermore, the team carry out training sessions of purchasing equipment ＆ devices to enhance the ability of evidence collection during inspecting. This project also held 12 meetings of project performance review.