Fig. 1
From: A psychophysical measurement on subjective well-being and air pollution
Polynomial fitting of air pollutants and perceptual data for all observers. PM2.5 is selected to represent the increase in air pollution combinations, including PM2.5, SO2, NO2, O3 and CO. As PM2.5 increases, the other pollutants increase with fixed ratios. Solid lines in all sub-figures are statistically fitted lines and dash lines are 95% confidence interval lines (CI). a, b The changes in the positive emotions of happiness (dark red) and expectation (light green) with changes in air pollution. c–f The changes in the negative emotions of worry (green), stress (purple), depression (sky blue) and irritation (yellow) with changes in air pollution. g The changes in SWB with changes in air pollution. SWB is in the perceptual range of [−5 5]. An SWB of 5 represents the most positive condition (magenta); a SWB of 0 represents a neutral condition (beige); a SWB of −5 represents the most negative condition (dark brown). See corresponding raw standardized scale value (z-score) data in Supplementary Fig. 5.
