广州市空气质量时空特征及新冠疫情的干预

编号 lyqk008643

中文标题 广州市空气质量时空特征及新冠疫情的干预

作者 潘勇军  高瑶瑶  李智琦  乔煜  陶玉柱  熊咏梅  齐跃强 

作者单位 1. 广州市林业和园林科学研究院 广州城市生态系统国家定位观测研究站 广州 510405;
2. 广东省林业科学研究院 广州 510520

期刊名称 中国城市林业 

年份 2020 

卷号 18

期号 5

中文摘要 文章对广州市11个国控监测点空气质量时报数据进行时间序列分解及预测，并对2020年新冠病毒疫情对环境空气质量的干预影响进行分析。结果表明：1）近5年来，广州市空气质量优良，PM_2.5年均浓度均达国家二级标准，日均值达二级标准浓度限值率为96.8%；空气质量逐年好转趋势明显。2）广州市校园区域比其他区域污染严重，主要污染物为NO₂、CO、PM，为机动车辆尾气排放造成；城市森林及公园附近空气污染物浓度较低，城市植被提升城市空气质量效果显著。3）2020年新冠肺炎疫情的社会隔离措施大幅度降低了各污染物浓度，SO₂、NO₂、CO、PM₁₀、PM_2.5浓度比往年同期（5年平均）分别下降约72.7%、36.2%、20.7%、36.5%、59.1%，但O₃浓度升高，比预测值高7.6%，比往年同期增长了18.3%；广州市应继续加强对机动车的管控，未来的大气污染防治重点应加强O₃污染治理。

关键词 空气质量  时空特征  时间序列分析  干预分析  广州市 

基金项目 欧盟地平线2020计划中欧城市可持续发展的城市森林应对方案研究、分享与管理CLEARINGHOUSE(SC5-13-2018-2019);
2020年广东省林业科技创新平台项目林业生态监测网络平台建设(2020-KYXM-09);
2020年广州市财政专项林业园林科学技术研究项目;
广州市城市森林生态系统效益监测,分析与研究项目;
广州市园林绿地生态监测(2061600000271);
2019年广州市财政专项广州森林公园康养功能评估及提升手段研究(2061800000129)

英文标题 Spatial and Temporal Characteristics of Air Quality and Intervention of the COVID-19 Pandemic in Guangzhou

作者英文名 Pan Yongjun, Gao Yaoyao, Li Zhiqi, Qiaoyu, Tao Yuzhu, Xiong Yongmei, Qi Yueqiang

单位英文名 1. Guanzhou Institute of Forestry and Landscape Architecture, Guangzhou Urban Ecosystem National Field Station, Guangzhou 510405, China;
2. Guangdong Academy of Forestry, Guangzhou 510520, China

英文摘要 This paper makes a time series analysis of air quality data from the 11 national supervised monitoring points in Guangzhou, and also analyzes the intervening effect of lockdown due to COVID-19 pandemic on air quality there. The results show that: 1) The air quality in Guangzhou is obviously better than before, with the annual PM_2.5 concentration meeting the second-level concentration limit of 35 μg·m^-3 and the daily mean value meeting the second-level concentration limit of 75 μg·m^-3; 2) The school campus suffers worse air quality than other areas do, with NO₂, CO and PM as the main pollutants emitted by motor vehicles, while urban vegetation has a significant effect on urban air quality improvement, which results in the lower concentration of air pollutants in urban park and forest areas; 3) The lockdown against COVID-19 in 2020 greatly reduces the concentrations of various air pollutants, including SO₂, NO₂, CO, PM₁₀ and PM_2.5, which decrease by 72.7%, 36.2%, 20.7%, 36.5%, 59.1% compared to the same periods of last years. However, the O₃ has a higher concentrations by 18.3% compared to the same period. Guangzhou is supposed to continue the effort to reduce the number of vehicles and the future focus in the air pollutants treatment should be put on the O₃ pollution control.

英文关键词 air quality;spatiotemporal characteristic;times series analysis;intervention analysis;Guangzhou

起始页码 1

截止页码 6

投稿时间 2020/6/15

作者简介 潘勇军(1971-),男,博士,高级工程师,研究方向为城市生态系统服务功能评估和生态监测。E-mail:pyjzsj@126.com

DOI 10.12169/zgcsly.2020.06.15.0002

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