The NYC Health Department monitors the air quality in the city. The Environmental Public Health Tracking Portal lets you check current conditions and the Community Air Survey provides data over time. You can find out about pollution levels in your neighborhood as well as specific pollutants.
The NYC Community Air Survey studies how pollutants from traffic, buildings (boilers and furnaces), and other sources impact air quality in different neighborhoods.
The NYC Environmental Public Health Tracking Portal provides a wealth of information about the air quality in NYC as a whole or in a particular neighborhood. This tool can be used by the average person to learn more about the City's environment as well as researchers who need specific information about illness and hospitalization caused by climate-related events.