2025年南京空气质量六项指标全部达标

Core Viewpoint - Nanjing has made significant progress in air pollution prevention since the start of the 14th Five-Year Plan, with all six major air quality indicators expected to meet national secondary standards by 2025, including a notable reduction in PM2.5 levels from 78 µg/m³ in 2013 to 27.1 µg/m³ by 2025 [1][2][3] Group 1: Air Quality Improvement - Nanjing's air quality has shown a continuous improvement trend across all indicators and regions, with PM2.5 levels dropping below 35 µg/m³ since 2020 and maintaining national secondary standards for six consecutive years [2] - By 2025, PM2.5 annual average concentration is projected to further decrease to 27.1 µg/m³, ranking third in the province, while the proportion of days with good air quality is expected to rise to 87.4%, the highest in the province [2] - The number of days with ozone exceedances is expected to decrease by six days in 2025, with no moderate or severe pollution days, marking the first time ozone concentration indicators have met standards since the 14th Five-Year Plan [2] Group 2: Pollution Control Measures - Nanjing has implemented a series of scientific and precise pollution control measures, focusing on major polluters and promoting ultra-low emissions transformations in key industries, resulting in over a 50% reduction in total pollutant emissions [3] - The steel industry has seen nearly 20 billion yuan invested in ultra-low emissions transformations, recognized as a national positive case in the 2024 Central Ecological and Environmental Protection Inspection [3] - Innovative regulatory models for volatile organic compounds (VOCs) have been introduced, including "code exchange" for activated carbon and "code washing" for restaurant oil smoke, creating a comprehensive regulatory network [3] - To address the growing number of vehicles, Nanjing has employed a combination of measures such as subsidies for retiring old vehicles, increasing clean transport ratios, and enhancing oil and gas recovery governance [3] - In 2025, Nanjing successfully applied for over 100 million yuan in central air pollution prevention funds to support the replacement of old non-operational heavy-duty trucks and non-road mobile machinery [3] - Dust and surface pollution control has been normalized through advanced management techniques, including remote monitoring via "smart construction sites" and drone inspections [3]