Based on the MODIS aerosol products, the correlation model between MODIS aerosol products and PM2.5 concentration was constructed. The precision of the inversion results was analyzed by the measured data. The air quality level of Henan Province and two target cities ( Zhengzhou, Xuchang) in 2016, as well as the temporal and spatial distribution and seasonal variation characteristics of PM2.5 were preliminarily discussed. The results showed that the PM2.5 concentration retrieved from satellite data was in good agreement with the measured data. In 2016, the overall air quality of the province was in the benign level, but the pollution was relatively serious in winter, and the PM2.5 concentration in large cities was higher than that in other cities.%基于MODIS气溶胶产品, 构建了其与PM2.5浓度的相关模型, 利用实测数据分析了反演结果的精度, 初步探讨了2016年河南省空气质量及两个目标城市郑州、许昌的PM2.5的时间变化特征.研究结果表明, 利用卫星数据反演得到的PM2.5浓度与实测数据具有较好的一致性, 2016年河南省整体空气质量处于良好水平, 但在冬季污染较为严重, 且大城市的PM2.5浓度比一般城市高.
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