秦皇岛空气污染特征及其与气象因素的关系

Characteristics of Air Pollution in Qinhuangdao and Its Relations with Meteorological Factors

利用国控站点空气监测数据和气象数据,对2016年秦皇岛市空气污染特征及其与气象因素的关系进行了分析。结果表明:2016年秦皇岛市NO_2、PM_(10)和PM_(2.5)浓度未达到国家二级标准限值,污染物浓度季节变化规律明显,SO_2峰值出现在1月,O_3峰值出现在5月,PM_(10)、PM_(2.5)、NO_2和CO浓度峰值均出现在12月。污染物在西南偏西风时污染程度较高。PM_(10)、PM_(2.5)、SO_2、CO浓度受风速影响较小,NO_2、O_3浓度受风速影响较大。颗粒物浓度受湿度影响较大,随湿度增加而增大。

Based on the air monitoring data and meteorological data collected from national stations in Qinhuangdao, the characteristics of the air pollution and the relationships with meteorological factors in 2016 were analyzed. The results showed that the concentrations of NO2, PM（10） and PM（2.5） were not up to the standard in 2016. The seasonal variation of the pollutants concentrations were obvious. The peak of SO2 concentration appeared in January, the peak of O3 concentration appeared in May and the peak of PM（10）, PM（2.5）, NO2 and CO concentration appeared in December.The pollutants had a high degree of pollution in the west-south west wind. The concentrations of PM（10）, PM（2.5）, SO2, and CO were less affected by wind speed, and the concentrations of NO2 and O3 were significantly affected by wind speed. The concentration of particulates was greatly affected by humidity and increased with increasing humidity.