气象条件对承德市大气污染的影响

Influence of Meteorological Conditions on Air Pollution in Chengde

利用承德市环境保护局环境监测站2014—2017年SO2、NO2、PM10逐日质量浓度监测资料及同期承德市气象局常规气象观测资料,分析气象条件对承德市大气污染的影响。结果表明,2013—2017年逐年PM10的浓度在0.081～0.109 mg/m3,均超过了国家二级标准;2013—2015年SO2浓度超过了国家一级标准;2013—2017年承德市逐年NO2浓度在0.034～0.039mg/m3,未达到国家一级标准;全年中,承德市PM10、SO2和NO2浓度值不尽相同,承德市大气污染物浓度具有明显的季节变化特征;风速、温度和相对湿度分别与PM10、SO2和NO2具有一定的相关性。

Using the daily concentration monitoring data of SO2, NO2 and PM10 from environmental monitoring station of Chengde Environmental Protection Bureau and the conventional meteorological observation data from Chengde Meteorological Bureau during 2014-2017, the influence of meteorological conditions on air pollution in Chengde was analyzed. The results showed that the annual PM10 concentration from 2013 to 2017 was 0.081-0.109 mg/m^3, which exceeded the national standard level 2, the SO2 concentration exceeded the national standard level 1 from 2013 to 2015, and the annual concentration of NO2 from 2013 to 2017 was 0.034-0.039 mg/m^3, which did not meet the national standard level 1. In the whole year, the concentrations of PM10, SO2 and NO2 in Chengde were different, and the concentrations of atmospheric pollutants had obvious seasonal variation characteristics. Wind speed, temperature and relative humidity were correlated with PM10, SO2 and NO2 respectively.