【摘要】 利用2015-2018年郑州市气态污染物（SO₂、CO、NO₂和O₃）的浓度数据和郑州市气象数据资料,分析了郑州市气态污染物浓度的变化趋势和影响因素。结果显示:2015-2018年郑州市SO₂、CO、NO₂的年均浓度逐年降低,但其污染物浓度在31个省会城市中排名相对靠后,污染较为严重。SO₂、CO和NO₂浓度均为冬季的最高,其次是春季和秋季的,夏季的最低,O₃浓度与之相反。气态污染物浓度与气象因素的相关性分析结果表明:SO₂、NO₂、CO浓度均与温度呈显著负相关,O₃浓度与温度呈显著正相关;各污染物与气压的相关性与温度相反;SO₂、NO₂、CO浓度与降水量均呈负相关,降水对O₃的具体影响还有待深入研究。更多还原

【Abstract】 In this paper,the concentration data of gaseous pollutants（SO₂,CO,NO₂ and O₃） and meteorological observation data in Zhengzhou during 2015-2018 are used for the analysis of the variation trend and impact factors of gaseous pollutant concentration in Zhengzhou.The analysis results show that the average annual concentrations of SO₂,CO,NO₂ and O₃ in Zhengzhou City decreased year by year from 2015 to 2018,but its pollutant concentration ranked relatively behind among the 31 provincial capitals,which means the pollution in Zhengzhou is still serious.The concentrations of SO₂,CO and NO₂ were the highest in winter,followed by spring and autumn,and the lowest in summer,but the O₃ concentration was in an opposite order. The correlation analysis between gaseous pollutant concentration and meteorological elements shows that concentrations of SO₂,NO₂ and CO are significantly negatively correlated with temperature,while the O₃ concentration is significantly positively correlated with temperature.The correlation between air pressure and various pollutants is opposite to that of temperature.The concentrations of SO₂,NO₂ and CO are all negatively correlated with precipitation.As for the impact of precipitation on O₃,it needs to be further studied.更多还原