Residential air pollution linked to higher depression scores among 9/11 responders
Summary
A study found that 9/11 first responders living in areas with more air pollution had higher symptoms of depression, PTSD, and physical frailty. In contrast, those living in greener neighborhoods with more trees showed lower symptoms of these health problems.Key Facts
- The study analyzed 18,734 World Trade Center responders living in New York City.
- About 39% of responders met the criteria for probable PTSD, and 35% for probable depression.
- Increased exposure to fine-particle air pollution (PM2.5) was linked to higher depression, PTSD symptoms, and frailty.
- For every 2.48 micrograms per cubic meter increase in PM2.5, depression symptoms increased by about 3.9%.
- Higher temperatures also raised risks of mental health issues and frailty.
- More neighborhood greenery reduced frailty, PTSD, and depression symptoms by small but measurable amounts.
- Greenery may help health by encouraging exercise, social interaction, and reducing stress.
- The study shows long-term health impacts from the 9/11 disaster combined with later environmental conditions.
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