Monitor fine particles, nitrogen dioxide, and ozone levels across NYC neighborhoods. Data from the NYC Community Air Survey — the most comprehensive neighborhood-level air quality monitoring program in the US.
The NYC Community Air Survey (NYCCAS) monitors multiple air pollutants across all five boroughs. NYC Intel surfaces neighborhood-level data for the indicators most relevant to public health.
Tiny particles that penetrate deep into the lungs and bloodstream. The most health-damaging pollutant in NYC, strongly linked to heart disease, asthma, and premature death.
Emitted by vehicles and building boilers. Causes respiratory irritation and contributes to smog formation. Highest near major roads and in high-traffic neighborhoods.
Ground-level ozone forms when sunlight reacts with vehicle and industrial emissions. Causes lung inflammation and is worst on hot, sunny days in summer.
A component of diesel exhaust closely associated with traffic sources. Highest near expressways and in neighborhoods with heavy truck traffic.
Understanding what drives air quality in your neighborhood helps explain why some areas see higher pollution levels than others.
Vehicle exhaust — especially from diesel buses and trucks — is the largest source of PM2.5 and NO2 in NYC neighborhoods. Proximity to expressways and freight routes matters most.
Heating oil boilers, particularly older No. 4 and No. 6 oil burners, contribute significantly to fine particle levels. NYC's phase-out of heavy heating oils has improved air quality in recent years.
Neighborhood-level industrial operations, truck depots, and warehouses add local pollution sources on top of regional background levels.
Pollution from upwind states and regions drifts into NYC, especially in summer. This background pollution affects all neighborhoods similarly and varies by weather patterns.
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Type any address and NYC Intel identifies the community district and associated air quality monitoring data.
See PM2.5, NO2, and other pollutant levels for your neighborhood from the NYC Community Air Survey.
See how your neighborhood's air quality compares to NYC averages and other areas you're considering.