Understanding haze-fog pollution in central-eastern China under the background of sustainable development

The purpose of this paper is to research spatial distribution and correlation of haze-fog pollution from 2001 to 2010 in central-eastern China by using Exploratory Spatial Data Analysis (ESDA) technique. Results highlight that: high and low haze-fog polluted provinces in central-eastern China have not changed obviously in the ten years, and the most seriously affected regions are mainly distributed in Shandong, Henan, Hebei and Jiangsu provinces; haze-fog pollution has a significant positive correlation, which illustrates that high haze-fog polluted regions tend to be adjacent to high haze-fog polluted regions and low haze-fog polluted regions tend to be adjacent to low haze-fog polluted regions; the agglomeration phenomenon is obvious and stable, where the "High-High" cluster type is mainly distributed in central China, the "Low-High" outlier type is mainly distributed in the eastern coastal areas.