Spatial interpolation of regional PM_2.5 concentrations in China during COVID-19 incorporating multivariate data.

10 shows that the MAE of the GWR model and GWR-EBK model from January to June 2019 followed a decreasing trend, which is consistent with the seasonal pattern of PM 2.5 changes in the Chinese region, indicating that the applicability of these two types of models is directly related to the magnitude of the PM 2.5 concentration values, which are high in winter, low in summer, and intermediate in spring and autumn, i.e., the PM 2.5 concentration varies with the season.

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