In the 25 years since 9/11, researchers have examined first responders' later-life exposure to fine-particle air pollution, known as PM2.5, as well as temperature and greenness in the neighborhoods where they lived. Read more:

In the 25 years since 9/11, researchers have examined first responders' later-life exposure to fine-particle air pollution, known as PM2.5, as well as temperature and greenness in the neighborhoods where they lived. Read more: ↧ Residential air pollution linked to higher depression scores among ... 9/11 first responders' exposure to air pollution and extreme heat in the neighborhoods they live in compounded poor health outcomes, a new study finds.