The European Environment Agency (EEA) warns that exposure to polluted air, noise, and chemicals is associated with an increased risk of depression, anxiety, and other mental health issues. Although causality has not yet been conclusively established in all cases, available evidence supports the need to reduce exposure to pollution.
EEA, 3 March 2026 | The EEA report summarises a growing body of evidence linking environmental pollution to mental health. Long-term exposure to polluted air, particularly fine particulate matter (PM2.5) with an aerodynamic diameter of 2.5 micrometers or less, and nitrogen dioxide (NO2), is associated with a higher incidence of depression, while short-term exposure spikes may exacerbate symptoms of schizophrenia.
Exposure during critical phases of brain development, such as prenatally and in childhood, also appears to be a risk factor. Noise pollution from traffic correlates with a slight increase in the risk of depression and anxiety; railway noise has been linked to higher rates of suicide. Chemical exposures, such as lead, secondhand smoke, or bisphenol A, are also noteworthy and have been associated with depression, schizophrenia, and anxiety-related symptoms.
The EEA emphasizes that mental disorders have multifactorial origins, so pollution should be understood as one contributing factor. In addition to reducing emissions and noise, improved access to green and blue spaces and other nature-based solutions may have beneficial effects.
Summary
Available evidence suggests that reducing pollution could benefit not only physical health but also the mental health of Europe’s population.
Source
EEA briefing: Pollution and mental health: current scientific evidence https://www.eea.europa.eu/en/analysis/publications/pollution-and-mental-health-current-scientific-evidence
