空气质量指数及大气污染控制对策

On Air Quality Index and Air Pollution Control Measures

空气质量的信息发布对定量评价城市空气污染状况发挥了重要作用。讨论了我国空气质量指数内涵、指标数和计算方法;AQI监测项目和信息发布体系符合当前大气污染复合型特征。分析近三年扬州空气质量数据及污染特征;研究了为控制城市空气污染,应科学制定PM2.5分级浓度限值、优化配置空气监测布点、降低机动车排放和发展城市公共交通等技术措施。

Air quality information release is important for quantitative evaluation of air pollution in cities.The connotation,the number of indicators and calculation method on air quality index are analyzed in the paper.AQI monitoring programs and information dissemination system remain consistent with the currently complex features of air pollution.Based on the analysis of air quality data and pollution characteristics in Yangzhou in recent three years,we should scientifically make PM2.5concentration grading limit value,optimize the allocation of air monitoring sites,reduce motor vehicle emissions and develop urban public transport so as to control air pollution in cities.