Based on the urgent requirements of the ‘Healthy China 2030’ strategy for the improvement of the urban atmospheric environment, the coordinated control may become a new breakthrough in governance. From the perspective of public health improvement, this research hopes to explore how to maximize the health benefits brought by the coordinated control of PM_2.5 and O₃. First of all, emission control and health benefits will be connected through the logical line of emissions-pollutant concentration-public health risks. Furthermore, the CMAQ model was used to simulate the changes in the concentration of pollutants caused by pollution emissions. While, the exposure response function was used to account for the health risks brought by the changes in concentration. Finally, the optimal solution for coordinated control of PM_2.5and O₃ is determined by comparing the health risks under different emission reduction scenarios. The research results show that: ①although the reduction of PM_2.5 emission has been effective, the continuous increase in O₃ emissions has also led to health risks that are difficult to mitigate. ② the same pollutant emission control produces the most health benefits under the collaborative emission reduction scenario, which are 1.7 times and 1.3 times that of the reference scenario and the single emission reduction scenario, respectively. ③when the ratio of PM_2.5 and O₃ emission control is 2.21, the public health benefit can be maximized while the total emission reduction is fixed. In addition, the research results can use to formulate the next step of air pollution prevention and control policies in China, which can achieve the goal of continuously improving the quality of the air environment and building a healthy human settlement environment.

pollution emission; coordinated control; health benefit; air pollution control