关于O3和PM2.5协同控制的一些思考

细颗粒物(PM_2.5)和臭氧(O₃)是影响我国环境空气质量持续改善的两个关键污染物,具有一定的同根同源性,具备协同控制的基础条件。通过对现阶段我国实施O₃和PM_2.5协同控制的政策管理、科学机理、技术措施和能力建设等方面的系统分析,建议从国家层面科学划定O₃联防联控区域,优化区域联防联控机制;摸清O₃关键前体物VOCs和NOx的排放基数,建立VOCs分物种清单;量化协同方案,有序开展污染物、区域、行业多角度协同控制;开展O₃和PM_2.5协同机理研究,强化科学研究的支撑作用;开展VOCs综合治理,提高监管执法能力建设。以期实现O₃和PM_2.5短期削峰,长期达标。

Some Thoughts on Coordinated Control of O3and PM2.5

In China,PM_2.5and O₃are two key pollutants that affect the continuous improvement of the ambient air quality.At the same time,O₃and PM_2.5have a certain degree of homology,so they have the basic conditions for coordinated control.Through a systematical analysis of the policy management,scientific mechanism research,technical measures,capacity building,etc.On the coordinated control of O₃and PM_2.5,it is recommended to scientifically delineate the joint prevention and control zone of ozone at the national level and optimize the regional joint prevention and control mechanism;find out the emission base of the key ozone precursors VOCs and NOx,establish the dynamic emission inventory of VOCs and NOx,and a sub-species emission inventory of VOCs;quantify the coordinated program,and carry out air pollutants,regions,and industries coordination from multiple perspectives manner in order;carry out researches on the synergistic mechanism of O₃and PM_2.5,and strengthen the supporting role of scientific research;carry out comprehensive management of VOCs emission from air pollutant sources,improve monitoring and law enforcement capacity building,in order to achieve short-term peak reduction of O₃and PM_2.5,and meet ambient air quality standards in long-term.