广州市黄埔区臭氧浓度变化特征及其与各类污染物相关性研究

Study on Variation Characteristics of Ozone Concentration in Guangzhou Huangpu and Its Correlation with Other Pollutants

研究广州市黄埔区2020年1月1号至2021年1月1号O_(3)污染规律特征,以及其与PM_(2.5)、PM_(10)、SO_(2)、CO等污染物相关性。结果表明,2020年广州市黄埔区O_(3)污染控制情况良好,2020年超标率仅为6%;从季度看,都符合二级标准;从月份变化看,无明显规律;从24小时变化看,符合O_(3)生成的理论曲线。相关性计算表明,O_(3)与CO和颗粒物的负相关性最好,相关系数均达到-0.92~-0.64,与NO_(x)、SO_(2)等污染物相关性较差。

O_(3)pollution characteristics from January 1,2020 to January 1,2021 in Guangzhou Huangpu and the correlation of O_(3)with PM_(2.5),PM_(10),NO_(x),COand SO_(2)were analyzed.The results showed that the deterioration of O_(3)pollution in Huangpu was well controlled in 2020.The over-standard rate of point day in 2020 was only 6%.In terms of seasons,they all met the secondary standard.From the monthly change,there was no obvious characteristics.From the perspective of 24 h change,O_(3)generation was in line with the theoretical curve.In addition,the correlation calculation showed that the negative correlation between ozone and CO and particulate matter were the best,with correlation coefficients ranging from-0.92 to-0.64,while there were poor correlated with NO_(x)and SO_(2).