空气中臭氧污染治理思路初探

申浩 任小辉 吕玉新

【摘  要】大气污染攻坚战对空气质量管控取得明显效果，空气质量显著好转。当前，臭氧污染成为影响空气质量的首要因素，对臭氧的管控一直是个难点、热点问题。臭氧属于典型的二次污染物，与空气中的氮氧化物、VOCs（按发性有机物）的含量呈正相关性。臭氧污染治理必须从氮氧化物和VOCs取得突破，这其中难度较大的是空气中VOCs的治理。氮氧化物的减排空间有限，还是应在VOCs上寻找突破。新乡市在治理VOCs方面早起步、早安排、早部署，综合施策，多措并举，在治理臭氧污染方面积累了一定经验。

【关键词】空气质量;臭氧污染;VOCs治理;质量监管

【Abstract】The battle against air pollution has achieved significant results in air quality control， and the air quality has been improved significantly. At present， ozone pollution has become the primary factor affecting air quality， and the management and control of ozone has always been a difficult and hot issue. Ozone is a typical secondary pollutant， and it is positively correlated with the content of nitrogen oxides and VOCs （according to volatile organic matter） in the air. Ozone pollution control must make breakthroughs from nitrogen oxides and VOCs. Among them， the more difficult one is the control of VOCs in the air. The space for reducing nitrogen oxides is limited， and breakthroughs should be sought in VOCs. Xinxiang City started early， arranged early， deployed early in the treatment of VOCs， implemented comprehensive policies， and took multiple measures simultaneously， and has accumulated certain experience in the treatment of ozone pollution.

【Keywords】 air quality;ozone pollution;VOCs governance;quality supervision

【中图分类号】X515                                           【文献标志码】A                                                 【文章编号】1673-1069（2021）08-0051-02

1 引言

新乡市空气污染防治攻坚战以来，全系统各级、各部门团结协作，共同推进空气质量提升行动。坚持以秋冬季细颗粒物和夏季臭氧污染管控为突破口，不断深化挥发性有机物和氮氧化物综合治理，协调各部门抓好以控烟粉尘、控散烧煤、控机动车、控燃用油、控锅炉燃烧、控废气外排、控烟花爆竹为中心的七个严控工作，一方面推动产业绿色转型，另一方面淘汰落后产能，对重污染企业实施搬迁改造，从根本上减少空气的排放量，2020年全市空气质量持续改善，位居全省空气质量改善显著的5个城市之一，受到省环境污染攻坚指挥部的通报表扬。空气质量监测数据显示，2020年全市有52天首要污染是臭氧，多集中在夏季，因為臭氧的含量偏高造成空气质量中等污染程度。……