Abstract:The status of air pollution in Handan city was based on the online observation data of atmospheric particulate matters and gaseous pollutants at four air quality monitoring stations during 2013 and 2014, as well as the meteorological observation data. It is found that the fine particulate matters were the key air pollutant in Handan. The annual average PM2.5 concentrations in 2013 and 2014 were respectively 139 μg/m3 and 116 μg/m3, which were about 4 and 3 times of the national grade II standard (35 μg/m3). Comparing with 2013, the PM2.5 concentrations in 2014 was reduced by 16.5%. In addition, the ratio of the days exceeding the standard dropped to 66.6% in 2014 from 74.4% in 2013. There was no obvious difference in the spacial distribution of PM2.5 concentration in Handan. The PM2.5 concentration was highest in winter, followed by autumn, spring and summer, while the PM10 concentrations were in the order of winter> spring> autumn> summer. There were no clear differences in the concentration of PM2.5 and PM10 in a week, indicating that weekly changes are not obvious in the pollutant emissions and the relatively stable pollutant emission sectors, e.g., industries, played a key role. Correlation analysis between the meteorological condition and the pollutant concentrations indicated that the calm wind had the highest frequency in four seasons in Handan, and the wind direction was concentrated in the direction zone from the east to the south and to the west. Henan, Shandong and Shanxi contributed more to particulate matters of Handan.