推动城市发展绿色低碳转型（现代化人民城市这样建·美丽）

Group 1: Environmental Performance and Innovations - Hebei Wuan Steel Group has achieved ultra-low emissions across its production chain, with real-time monitoring from 1,766 environmental monitoring points [1] - The company was rated as an A-level enterprise for environmental performance by the end of 2023, indicating the highest level of environmental governance in the industry [2] - The city of Wuan has seen a transformation in its steel, coking, and cement industries, with 84% of key industry enterprises achieving A-level ratings [2] Group 2: Emission Reduction Efforts - Wuan has accelerated the elimination of inefficient production capacity, shutting down all small blast furnaces and converters [2] - The transition from long-process to low-carbon, energy-saving short-process steelmaking has resulted in a reduction of 1.6 tons of CO2 and 75% of pollutant emissions per ton of steel produced [2] - New technologies, such as carbon monoxide catalytic oxidation, have been implemented, leading to a daily reduction of approximately 51 tons of emissions [3] Group 3: Air Quality Improvements - In 2024, the average concentration of carbon monoxide in Wuan was 2.1 mg/m³, a decrease of 12.5% year-on-year [4] - PM2.5 concentration in Wuan dropped to 37.2 µg/m³ in the first half of 2025, marking a 31.27% decrease compared to the previous year [4] - The number of days with good air quality reached 133, an increase of 30 days year-on-year, achieving the best air quality levels recorded [4]