Study on temporal and spatial distribution characteristics and correlation of ozone pollution in Anyang City
Based on the hourly ozone concentration data and meteorological observation data of Anyang City during 2017-2022,the corre-lation analysis method was applied to carry out the research.The results showed that from 2017 to 2022,the rank correlation coefficient of ozone pollution load ratio in Anyang City was 0.943,showing a significant rising trend.The number of days exceeding the standard of ozone per year was(74±13)days,and it has become the primary pollutant of the atmospheric environment in Anyang City.At the same time,the ozone pollution showed a significant seasonal difference,which was heavier in summer,followed by in spring,and lower in autumn and winter.The pollution was concentrated from May to September,with June being the most serious.The ozone pollution showed obvious blocky distribution characteristics,and the pollution basically showed the characteristics of high in the west and low in the east.The correlation between ozone concentration and temperature and humidity in Anyang City is strong,and the correlation coefficients be-tween ozone concentration and daily mean temperature and daily mean humidity are 0.76 and-0.59,respectively.
ozonetemporal and spatial distributionmeteorological factorsrank correlation coefficient
万方数据
维普
