Fig. 12

(left) Scatter plots of the training data (corrected samples are marked black, uncorrected data are shown using grey color), (right) scatter plots of the testing data: (a) PM1, (b) PM2.5, (c) PM10.

(left) Scatter plots of the training data (corrected samples are marked black, uncorrected data are shown using grey color), (right) scatter plots of the testing data: (a) PM1, (b) PM2.5, (c) PM10.