去年广州空气优良天数比例达93.4% 连续三年超九成

Core Viewpoint - Guangzhou is projected to achieve comprehensive air quality standards by 2025, with a good air quality day ratio of 93.4% and an average PM2.5 concentration of 21.5 micrograms per cubic meter, maintaining the best status among national central cities [1] Group 1 - The air quality during the National Games in Guangzhou was consistently good, with an average PM2.5 concentration of 18 micrograms per cubic meter, marking the first time in five years that it achieved a "single-digit" figure [1] - On the opening day of the event, the PM2.5 daily average concentration was recorded at 15 micrograms per cubic meter, with levels dropping to 8 micrograms per cubic meter during the opening ceremony [1] Group 2 - Guangzhou is focusing on PM2.5 control as a primary strategy, implementing a comprehensive action plan that includes 92 key tasks across nine areas to improve air quality [1] - The city has enacted strict regulations, including a full ban on black smoke vehicles, prohibition of high-emission machinery, and restrictions on National III diesel trucks [1] - The green travel ratio in the central urban area has reached 82%, successfully meeting the goals set for the 14th Five-Year Plan [1] Group 3 - The Guangzhou Ecological Environment Bureau has enforced the "100% compliance" requirement for construction sites, conducting over 39,000 inspections to control dust pollution [2] - Measures include enhanced road watering to mitigate dust and a quarterly update of pollution weather response plans, promoting regional cooperation in the Guangdong-Hong Kong-Macao Greater Bay Area for PM2.5 control [2]