Breathing in polluted air could increase the risk of depression, schizophrenia, bipolar disease, and other mental disorders. A controversial study published in PLOS Biology last week claimed that there is a link between exposure to air pollution and the possibility of developing mental disorders. However, the results were considered contentious by the publication, open to more research and debate.
The sample data for the study was sourced from the US and Denmark. Large scale data from the two countries found a correlation between air pollution and bipolar disease in both countries and between air pollution and depression, schizophrenia, and personality disorder in Denmark. The US data also shows a correlation between poor land quality and personality disorder.