This chapter delves into the paradigm of “dual attainments” within the context of heavy industrial cities, with a specific focus on Shijiazhuang City. Through an analysis encompassing the general landscape of Shijiazhuang City, the present condition of environmental air quality, the distinctive features of atmospheric pollutant emissions, and the established timelines for meeting air quality standards, strategic approaches are proposed to facilitate Shijiazhuang City’s achievement of air quality compliance. These strategies are formulated based on comprehensive assessments derived from urban emission inventories and model simulations. Additionally, the chapter explores the prospective scenario of achieving peak carbon emissions while ensuring compliance with air quality standards. According to model calculations, achieving air quality compliance in Shijiazhuang City necessitates substantial reductions in the emissions of various pollutants relative to their 2017 baseline levels. Specifically, reductions of 60%, 70%, 45%, 70%, and 50% respectively for SO2, NOx, NH3, primary PM2.5, and VOCs are required. Upon attaining these reductions, simulated PM2.5 concentrations are anticipated to fall below 35.0 μg/m3. Projections indicate that by 2033, the annual average concentrations of PM2.5, PM10, SO2, CO, and NO2 will align with regulatory standards. These concentrations are anticipated to reach 31 μg/m3, 58 μg/m3, 6.5 μg/m3, 0.52 mg/m3, and 23.2 μg/m3, respectively. However, it is noted that the 90th percentile of the maximum daily 8-hour O3 concentration is expected to rise compared to the 2017 baseline level. Coordinated measures aimed at reducing VOCs emissions are recommended to bring the O3 level into compliance by 2035. Regarding peak carbon emissions, with the target of achieving air quality compliance by 2033, it is forecasted that emissions in Shijiazhuang City will reach their maximum in 2020, followed by a sustained decline.

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Analysis of the Pathways to Achieving “Dual Attainments” in Shijiazhuang City

  • Yu Bo,
  • Shida Sun,
  • Liling Wu,
  • Kebin He

摘要

This chapter delves into the paradigm of “dual attainments” within the context of heavy industrial cities, with a specific focus on Shijiazhuang City. Through an analysis encompassing the general landscape of Shijiazhuang City, the present condition of environmental air quality, the distinctive features of atmospheric pollutant emissions, and the established timelines for meeting air quality standards, strategic approaches are proposed to facilitate Shijiazhuang City’s achievement of air quality compliance. These strategies are formulated based on comprehensive assessments derived from urban emission inventories and model simulations. Additionally, the chapter explores the prospective scenario of achieving peak carbon emissions while ensuring compliance with air quality standards. According to model calculations, achieving air quality compliance in Shijiazhuang City necessitates substantial reductions in the emissions of various pollutants relative to their 2017 baseline levels. Specifically, reductions of 60%, 70%, 45%, 70%, and 50% respectively for SO2, NOx, NH3, primary PM2.5, and VOCs are required. Upon attaining these reductions, simulated PM2.5 concentrations are anticipated to fall below 35.0 μg/m3. Projections indicate that by 2033, the annual average concentrations of PM2.5, PM10, SO2, CO, and NO2 will align with regulatory standards. These concentrations are anticipated to reach 31 μg/m3, 58 μg/m3, 6.5 μg/m3, 0.52 mg/m3, and 23.2 μg/m3, respectively. However, it is noted that the 90th percentile of the maximum daily 8-hour O3 concentration is expected to rise compared to the 2017 baseline level. Coordinated measures aimed at reducing VOCs emissions are recommended to bring the O3 level into compliance by 2035. Regarding peak carbon emissions, with the target of achieving air quality compliance by 2033, it is forecasted that emissions in Shijiazhuang City will reach their maximum in 2020, followed by a sustained decline.