Air pollution linked to higher suicide risk, international research suggests
Summary
Research from Queen’s University Belfast shows that air pollution, especially small particles and nitrogen dioxide, is linked to a higher risk of suicide and suicidal thoughts. The study suggests that reducing pollution could be part of public health strategies to lower suicide rates, but experts say more research is needed to prove pollution causes suicide.Key Facts
- The study reviewed 29 previous research papers and found links between air pollution and increased suicide risk.
- Small particulate matter and nitrogen dioxide in the air were most clearly connected to suicide deaths and attempts.
- Noise pollution and other air pollutants like sulphur dioxide and ozone might also increase suicide risk.
- Evidence about the effects of light and water pollution on suicide risk was unclear.
- Suicide prevention experts say many factors influence suicide, and pollution might be one of several.
- Some experts warn that this study shows association, not proof that pollution causes suicide.
- Over 720,000 people worldwide die by suicide each year, making it a top cause of death among young people.
- Authors recommend considering environmental pollution in mental health policies and suicide prevention efforts.
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