More content about fine particles:

ZAPPA: A tool to understand air quality policies

New York City’s air quality is generally good and has been improving over time. Still, air pollution threatens health: two pollutants, ozone and PM2.5 …

Tracking changes in New York City's sources of air pollution

As city life changes, so does its air quality, as sources of emissions that affect the city’s outdoor air quality, like truck traffic, building …