NO2 in Grand Rapids, MI
Real-time Nitrogen Dioxide monitoring and health recommendations
Current NO2 Levels
Overall AQI
About Nitrogen Dioxide
A reddish-brown gas from burning fuel, can irritate airways.
Measured in ppb
Health Impact
Air quality is considered satisfactory, and air pollution poses little or no risk.
What Is a Safe Level of NO2?
By the EPA Air Quality Index, nitrogen dioxide is Good — safe for everyone up to 53 ppb (AQI 0–50). From 53 to 100 ppb is Moderate (AQI 51–100): acceptable for most people, though unusually sensitive individuals may notice symptoms. Above 100 ppb the air turns Unhealthy for Sensitive Groups and EPA health guidance applies.
Grand Rapids is currently at AQI 41 (≈43 ppb, estimated) for NO2 — within the Good range, so NO2 levels are safe for everyone right now.
Thresholds are the official EPA AQI category breakpoints for nitrogen dioxide (1-hour standard). The current concentration is estimated from the measured AQI sub-index; the exact value within a band is not recoverable from the index alone.
Sources of NO2
• Vehicle emissions (cars, trucks, buses)
• Power plants and industrial boilers
• Off-road equipment and engines
• Residential heating systems
Other Pollutants
Full Air Quality Report
View all pollutants and comprehensive air quality data for Grand Rapids.
View Full ReportFilter Combustion Gases in Grand Rapids
The dominant pollutant in Grand Rapids is a combustion gas (NO2), AQI 41. Particle (HEPA) filtration alone won't capture gases — you want a purifier with a real activated-carbon stage, which adsorbs nitrogen dioxide, sulfur dioxide and traffic/industrial fumes that seep indoors.
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Filter Combustion Gases in Grand Rapids
The dominant pollutant in Grand Rapids is a combustion gas (NO2), AQI 41. Particle (HEPA) filtration alone won't capture gases — you want a purifier with a real activated-carbon stage, which adsorbs nitrogen dioxide, sulfur dioxide and traffic/industrial fumes that seep indoors.
Compare activated-carbon purifiers (for gases):
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