冬奥会期间潍坊市工业源大气污染物管理措施及效果评估

为分析探究冬奥会期间(2022年1月30日—2月20日)工业源大气污染物排放特征和变化规律，基于潍坊352家安装在线连续监测系统(CEMS)企业的大气污染源排放数据以及150个环境空气质量监测站点数据，分析了冬奥会期间空气质量与污染物排放量的关系，以及不同行业、不同管理措施企业的落实情况与减排效果.结果表明：(1)采用352家安装CEMS企业的大气污染源排放数据来评估工业源管理效果是可行的.(2)冬奥会管理期工业企业烟粉尘、SO₂和NO_x排放削减量分别为11.04、95.96和249.92 t，削减率分别为25%、31%和27%，工业企业管理效果良好；环境PM2.5、SO₂和NO2浓度分别下降24%、11%和16%，空气质量改善明显.(3)限产类和自主减排类企业污染物削减量占总削减量的比例接近90%，火力发电、钢铁等11个主要行业对所有行业总排放量削减贡献率为92%.(4)停产类企业在管理期排放总量基本削减至0，限产类企业实际污染物削减率(23%～26%)与一般管理措施减排要求(20%～30%)基本吻合，企业管理措施落实...

Management Measures and Effect Evaluation of Industrial Air Pollutants in Weifang City During the Winter Olympics

In order to analyze the emission characteristic and the change law of atmospheric pollutants from the industrial sources during the 24th Winter Olympics, the online atmospheric pollution emission data of 352 industries from the Continuous Emission Monitoring System (CEMS) and the ambient monitoring data from 150 sites in Weifang City were used. The relationship between air quality and pollutant emissions during the Winter Olympics (30th January to 20th February 2022), and the relationship between implementation and emission reduction effectiveness of different industries and management measures were investigated. The results show that it is feasible to evaluate the effect of the industrial source control by using the air pollution emission data of 352 enterprises with CEMS. During the management period, industrial dust, sulfur dioxide (SO₂), and nitrogen oxide (NO_x) emissions were reduced by 11.04 t (25%), 95.96 t (31%) and 249.92 t (27%), respectively, and the ambient concentrations of fine particulate matter (PM_2.5), SO₂ and nitrogen dioxide (NO₂) decreased by 24%, 11% and 16%, respectively. The management effect of the industrial sources was significant with an obvious improvement in air quality. The proportion of emission reductions from the limited-control and regardless-control industries accounted for nearly 90% of the total emission reduction, and 11 major pollution sectors, including thermal powerplants and iron-steel works, contributed 92% of the total reduction. During the management period, the emissions from the suspended enterprises were nearly 0, and the emissions from the limited enterprises were reduced by 23%-26%, which met the emission reduction requirements of general management measures (20%-30%). The management measures adopted by the enterprises were well implemented. It is suggested that iron-steel enterprises, which use waste heat from production to provide heating for residential heating, should achieve emission reductions by reducing the sintering machine emissions. The research showed that the management effect of the industrial sources was obvious during the Winter Olympics in Weifang City, and the CEMS data of enterprise was proved to be effective in the evaluation of the industrial source management effect.