Core Insights - Shanghai's air pollution control practices focus on targeted measures across key areas such as mobile sources, industrial sources, and residential sources, utilizing a combination of policies, technology, regulation, and collaborative governance to steadily improve air quality [1][2] Group 1: Shanghai's Approach - Shanghai aims for "long-term root cause resolution" in pollution control, employing scientific methods throughout the process and ensuring that each step is precise and effective [2] - The city identifies mobile sources as the largest contributor to PM2.5, accounting for 44% of the impact, while industrial sources contribute 51% of VOC emissions, which are critical for ozone pollution [2] - Shanghai has implemented a dual approach of "incentives + constraints" to address mobile sources, leading to the early retirement of over 70% of National IV heavy diesel vehicles and increasing the share of new energy heavy trucks to 8% [2] Group 2: Lessons for Other Cities - Other cities should conduct in-depth pollution source analysis to identify critical issues in pollution control and focus on key areas, leveraging technology to enhance the precision and sustainability of regulatory measures [3] - Effective air pollution management requires a long-term perspective rather than short-term results, emphasizing the importance of targeting the most significant contributors to pollution [3] - Engaging the entire community and concentrating efforts on the main pollution sources will lead to more significant improvements in air quality [3]