The Modulation of Meteorological Parameters on Surface PM2.5 and O3 Concentrations in Guangzhou, China
The Modulation of Meteorological Parameters on Surface PM2.5 and O3 Concentrations in Guangzhou, China
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广州市气象参数对地表PM2.5和O3浓度的调控
DOI：
10.4209/aaqr.2020.03.0084
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发表时间：
2021-01-01
影响因子：
4
通讯作者：
Chen, Chen
中科院分区：
文献类型：
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作者：
Bu, Qiaoli;Hong, Yingying;Chen, Chen
PM2.5和臭氧（O-3）是导致中国空气质量恶化的两种主要污染物。以广州市为例，分析了2014-2016年广州市4个气象站和10个环境监测站的气象数据和空气质量数据，评价了重要气象参数对PM2. 5小时浓度和8小时最大平均（MDA 8）O-3日浓度的影响。通过计算各因子对这些浓度的临界值，我们发现，当相对湿度> 50%、小时雨强为29 ℃或日平均风速为
PM2.5 and ozone (O-3) are two major pollutants that are worsening air quality in China. Using Guangzhou as a case study, we analyzed the meteorological data and air quality data for 2014-2016 obtained by 4 weather stations and 10 environmental monitoring stations, respectively, and assessed the influence of significant meteorological parameters on the hourly PM2.5 concentration and the daily maximum 8-hour-averaged (MDA8) O-3 concentration. Calculating each factor's critical values for these concentrations, we found that the hourly PM2.5 concentration tended to increase when the relative humidity was > 50%, the hourly rainfall intensity was 29 degrees C, or the average daily wind speed was