中文关键词臭氧TCEQ方法决定系数城市分类控制区 英文关键词ozoneTCEQ methoddetermination coefficientclassification of citiescontrol area

作者	单位	E-mail
闫慧	华南理工大学环境与能源学院, 广州 510006	yanhui.yh@foxmail.com
张维	华南理工大学环境与能源学院, 广州 510006
侯墨	华南理工大学环境与能源学院, 广州 510006
李银松	华南理工大学环境与能源学院, 广州 510006
高平	华南理工大学环境与能源学院, 广州 510006
夏青	中国环境监测总站, 北京 100012
孟晓艳	中国环境监测总站, 北京 100012
范丽雅	华南理工大学环境与能源学院, 广州 510006 挥发性有机物污染治理技术与装备国家工程实验室, 广州 510006 广东省大气环境与污染控制重点实验室, 广州 510006 广东省环境风险防控与应急处置工程技术研究中心, 广州 510006	fanly@scut.edu.cn
叶代启	华南理工大学环境与能源学院, 广州 510006 挥发性有机物污染治理技术与装备国家工程实验室, 广州 510006 广东省大气环境与污染控制重点实验室, 广州 510006 广东省环境风险防控与应急处置工程技术研究中心, 广州 510006

中文摘要 为划分我国臭氧污染控制区，制定更加科学合理的臭氧污染控制措施，根据2018年地面臭氧浓度监测数据，分析了全国338个地级及以上城市的臭氧超标情况，利用TCEQ方法计算出各城市的本地生成O₃量与区域传输O₃量，对本地生成O₃量与O₃日最大8 h平均值进行相关性分析，根据决定系数（R²）确定了各城市臭氧污染的主要来源.结果表明，2018年全国共有121个城市O₃浓度超标，超标率达35.8%；104个城市本地生成O₃对当地O₃污染影响较大，是O₃污染的主要来源；另外234个城市O₃污染的主要来源则以区域传输O₃为主.利用城市O₃超标情况与O₃污染来源将城市分为4类：超标-以本地生成O₃为主的城市（N-L）、超标-以区域传输O₃为主的城市（N-T）、达标-以本地生成O₃为主的城市（S-L）和达标-以区域传输O₃为主的城市（S-T）.最终根据各个省份中4类城市的占比，将全国划分为3类控制区：重度控制区、中度控制区及一般控制区.重度控制区中的N-L城市在3类控制区中占比最多（20.3%），污染最为严重；中度控制区中4类城市的占比均属于中等水平；一般控制区中S-T城市占比最多（65.4%），污染程度较轻. 英文摘要 Based on the ground-level ozone concentration monitoring data in 2018, the ozone concentrations in 338 cities at the prefecture level and above were analyzed, and the TCEQ method was utilized to calculate the amount of locally generated ozone and regionally transported ozone in each city to divide the national ozone pollution control area and develop appropriate ozone pollution control measures. Correlation analysis was conducted between the amount of locally generated ozone and the daily maximum 8 h average ozone in each city to determine the main source of ozone pollution by determination coefficient (R²). The results show that 121 cities (35.8%) in China exceeded the standard in O₃ concentration in 2018. The local generation of O₃ in 104 cities has a great impact on the local O₃ pollution, and is its main cause. In the other 234 cities, the main source of O₃ pollution is regionally transported O₃. Cities are classified into four categories based on their ozone concentration levels and pollution sources:cities with a nonattainment ozone situation and mainly locally generated ozone (N-L), cities with a nonattainment ozone situation and mainly regionally transported ozone (N-T), cities with a standard ozone situation and mainly locally generated ozone (S-L), and cities with a standard ozone situation and mainly regionally transported ozone (S-T). Finally, according to the proportion of four city types in each province, the whole country is divided into three types of control areas:severe, moderate, and general. N-L cities in the severe control area account for the largest proportion (20.3%) of the three types of control areas and the pollution is the highest; the proportion of the four categories of cities in the moderate control area are all medium; the general control area mainly includes S-T cities (65.4%), and the pollution is the lowest.

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