China has accomplished a remarkable environmental milestone by simultaneously boosting economic output and dramatically reducing air pollution levels throughout its 14th Five-Year Plan period (2021-2025). Official data from the Ministry of Ecology and Environment reveals unprecedented progress in the nation’s atmospheric conditions while maintaining robust economic growth.
According to Li Tianwei, Director of the Ministry’s Department of Atmospheric Environment, China achieved a 30 percent expansion in Gross Domestic Product while reducing the national average concentration of PM2.5 particulate matter by 20 percent during the five-year timeframe. This dual accomplishment demonstrates the effectiveness of China’s integrated approach to environmental management and economic development.
The statistical evidence shows substantial improvements across multiple metrics. The number of urban centers meeting national air quality standards increased significantly from 206 to 246 cities. Particularly noteworthy is the performance of China’s economic powerhouses—the 29 cities with GDP exceeding 1 trillion yuan ($145.8 billion)—which achieved an average PM2.5 concentration of 27.8 micrograms per cubic meter, surpassing the national average.
Beijing’s transformation stands as a particularly compelling case study. Through twelve years of sustained pollution control measures, the capital reduced its annual average PM2.5 density from 89.5 mcg/cu m in 2013 to just 27 mcg/cu m in 2025. This represents one of the most dramatic air quality improvements recorded in any major global city.
The Ministry is implementing upgraded air quality standards effective March 1, establishing a transitional annual limit of 30 mcg/cu m for PM2.5 until 2030, with plans to tighten this further to 25 mcg/cu m thereafter. These standards represent a significant enhancement over the previous 2012 benchmark of 35 mcg/cu m.
Additional indicators confirm the comprehensive nature of China’s air quality achievements. During summer 2025, the nation recorded 97 consecutive days with air quality indexes below 100—the first time such an extended period of consistently good air quality has been documented. Nationwide, cities at prefecture level and above achieved an average PM2.5 concentration of 28 mcg/cu m in 2025, with heavy pollution days accounting for just 0.9 percent of the year. Excluding dust weather impacts, the proportion of days with good air quality reached 89.3 percent, establishing new records across all three monitoring indicators.