Fig. 3
From: A psychophysical measurement on subjective well-being and air pollution
Polynomial fitting of air pollutants and perceptual data in country backgrounds. a, b The change in the positive emotions of happiness and future expectations with changes in air pollution. c, d–f The changes in the negative emotions of worry, stress, depression and irritation with changes in air pollution. g The changes in SWB with changes in air pollution. Positive and negative emotions and SWB are compared between observers living in China and the UK. The red line indicates that the observers in China have stronger emotions than those in the UK under the given air pollution condition (PM2.5); the blue line indicates that the observers in the UK have stronger emotions than those in China under the given air pollution condition (PM2.5).
