Environment and Health Data Portal

Outdoor Air Quality: the NYC air quality data hub

New York City's air contains particles, drops of liquid, gasses, and other pollution that can affect health - it can affect our breathing, and bad air quality can be particularly dangerous for older adults, children, and people with heart or lung conditions.

Air quality can vary from neighborhood to neighborhood, based on local levels of emmissions and many other factors. We monitor air quality using the New York City Community Air Survey (NYCCAS). NYCCAS is NYC's comprehensive air quality monitoring and modeling network, and it allows us to understand neighborhood differences in air quality - and what contributes to those differences.