A study has found that people living in places with high levels of air pollution are more likely to experience mental health problems, than those in less polluted areas, as reported in The Guardian.With exposure to air pollution linked to rises in depression and anxiety, it is important that measures continue to be implemented to control for high levels of pollution. Especially, as Dr Ian Mudway noted, because air pollution remains a factor, even when controlling for other factors, e.g. socioeconomic or environmental.