Group 1 - The formation mechanism of ozone pollution is complex, influenced by the synergistic effects of volatile organic compounds (VOCs) and nitrogen oxides (NOx), with photochemical reactions regulated by meteorological conditions, making governance more challenging than particulate matter [1] - Current strategies in China focus on source reduction of VOCs and NOx to combat ozone pollution, facing challenges such as high prevention costs, long cycles, and a lack of end-of-pipe treatment technologies [1] - Innovative breakthroughs in end-of-pipe treatment technologies, such as the efficient catalytic materials developed by the Chinese Academy of Sciences, have shown potential in reducing ozone concentrations by 10%-20% in treated areas [1] Group 2 - There is a need for enhanced policy and financial support to promote the application of photocatalytic technology in urban ozone governance, including integrating pollutant self-purification technologies into urban renewal and green building standards [2] - Strengthening technology research and development, improving standardization, and enhancing application efficiency are essential, including the development of catalytic materials suitable for high humidity and complex environments [2] - The essence of end-of-pipe ozone governance is to enhance the self-repair capability of urban ecosystems through green and low-carbon means, embedding ozone control into urban life systems [2]