Impact of air pollution

Poor air quality, with higher levels of particulates, has a major impact on our cognition. Previous research has shown that individuals make different decisions and more mistakes when the quality of the air they are breathing is poorer. For example, during periods of increased particulate concentrations, chess players perform significantly worse, students score lower in exams, and stock market traders make less profit.

More negative emotions

In the new research, Pestel and his colleagues looked at the effect of air pollution on larger groups of people by analysing voting behaviour during elections. The research shows that on days and in regions with higher air pollution, more opposition parties receive votes than do ruling parties. The analysis shows that underlying emotions play a role. Voters appear to feel angrier, unhappier and more anxious during days with poorer air quality.

Political consequences

When people feel more negative, they are more likely to opt for change. This means that on days with more air pollution, there will be less support for ruling parties and more support for the opposition. Although this process takes place unconsciously, it has major political and social consequences.