摘要
以大气环境地面监测数据及其对应的地面气象数据作为基础数据,分析了2005~2014年间川南城市群大气污染时空分布特征及与气象因子相关关系。结果表明,近10年来,川南城市群PM_(10)存在典型的双峰变化,NO_2和SO_2年平均值总体保持稳定趋势;季节上表现为冬季大气污染最严重,夏季大气污染最轻。风速对PM_(10)浓度影响较大,能见度与PM_(10)呈明显的相关性。
Based on the ground monitoring atmospheric environmental data and corresponding ground meteorological data in the urban agglomeration in southern Sichuan, this paper analyzed the air pollution characteristics of the urban agglomeration in southern Sichuan and it＇ s correlation with meteorological factors during 2005 to 2014. Results show that PM10 has the typical bimodal changes, however, NO2 and SO2 annual average overall showed stable trends in the urban agglomeration in southern Sichuan nearly 10 years. Season variation showed that the air pollution in winter is heaviest while in summer it＇ slightest. The wind speed has significant influence on PM10. Visibility and PM10 have showed a obvious correlation.
出处
《四川环境》
2017年第2期68-75,共8页
Sichuan Environment
关键词
川南城市群
PM10
风速
降水
能见度
The urban agglomeration in Southern Sichuan
PM10
wind speed
precipitation
visibility
