AIR QUALITY MO

Air Quality in Springfield, MO: Good (46 AQI)

AQI 46 · Good · PM2.5 · Updated 2026-05-03

Springfield's air quality is good. Air pollution poses little or no risk.

Data: EPA AirNow, FEMA National Risk Index Last verified: 2026-05-03

Average AQI

Good

AQI Category

Wildfire Risk

Mold Score

ZIP Codes

What is AQI?

The Air Quality Index (AQI) is a standardized scale from 0 to 500 that measures air pollution levels. 0-50 is "Good," 51-100 is "Moderate," 101-150 is "Unhealthy for Sensitive Groups," and above 150 is "Unhealthy" for everyone. AQI tracks five major pollutants: ground-level ozone, particulate matter (PM2.5 and PM10), carbon monoxide, sulfur dioxide, and nitrogen dioxide. Springfield's average AQI of 46 falls in the "Good" range.

How do wildfires affect air quality?

Wildfire smoke contains fine particulate matter (PM2.5) that can travel hundreds of miles and dramatically spike AQI readings. During fire season, even cities far from active fires can experience unhealthy air. HEPA air purifiers (rated for PM2.5) are the most effective indoor protection. Check AirNow.gov for real-time conditions during fire season.

Air Quality Map: Springfield, MO

Each dot represents a ZIP code. Color indicates AQI level. Tap a dot for details.

Good (0-50) Moderate (51-100) USG (101-150) Unhealthy (151+)

Air Quality by ZIP Code in Springfield

AQI varies across Springfield's 16 ZIP codes based on proximity to pollution sources and local geography.

ZIP Code	AQI	Category	Wildfire	Mold
65801	46	Good	29	44	View report →
65802	46	Good	29	58	View report →
65803	46	Good	30	55	View report →
65804	46	Good	30	58	View report →
65805	46	Good	29	53	View report →
65806	46	Good	29	55	View report →
65807	46	Good	29	54	View report →
65808	46	Good	29	44	View report →
65809	46	Good	30	46	View report →
65810	46	Good	30	49	View report →
65814	46	Good	29	44	View report →
65817	46	Good	29	44	View report →
65890	46	Good	29	44	View report →
65897	46	Good	30	44	View report →
65898	46	Good	29	44	View report →

Showing 15 of 16 ZIP codes. View all.

Air Quality Overview

Springfield, Missouri has good air quality with an average AQI of 46. This means air pollution poses little or no risk. The dominant pollutant measured is PM2.5.

The Air Quality Index (AQI) is an EPA-standardized scale from 0 to 500. Values below 50 are "Good," 51-100 "Moderate," 101-150 "Unhealthy for Sensitive Groups," 151-200 "Unhealthy," 201-300 "Very Unhealthy," and above 300 "Hazardous."

Dominant Pollutant: PM2.5

PM2.5 (fine particulate matter) consists of particles smaller than 2.5 micrometers — about 30 times thinner than a human hair. These particles can penetrate deep into the lungs and enter the bloodstream.

Health effects of PM2.5 exposure:

Short-term: coughing, shortness of breath, aggravated asthma
Long-term: reduced lung function, cardiovascular disease, premature death
Most vulnerable: children, elderly, people with heart or lung disease

Common sources in urban areas: vehicle exhaust, construction dust, industrial emissions, wildfire smoke, residential wood burning.

Air Quality by ZIP Code in Springfield

AQI varies across Springfield's 16 ZIP codes based on proximity to pollution sources, traffic patterns, and local geography:

ZIP Code	AQI	Category	Wildfire Risk	Mold Score
65801	46	Good	29	44
65802	46	Good	29	58
65803	46	Good	30	55
65804	46	Good	30	58
65805	46	Good	29	53
65806	46	Good	29	55
65807	46	Good	29	54
65808	46	Good	29	44
65809	46	Good	30	46
65810	46	Good	30	49
65814	46	Good	29	44
65817	46	Good	29	44
65890	46	Good	29	44
65897	46	Good	30	44
65898	46	Good	29	44

Showing 15 of 16 ZIP codes. Check your specific ZIP for detailed data.

Wildfire Smoke Risk

Springfield has an elevated wildfire smoke risk with an average smoke risk score of 29 (scale 0-100). There have been 616 fires recorded within 100 km of city ZIP codes.

Metric	Value
Avg. smoke risk score	29
Max smoke risk score	30
Fires within 100 km	616
High-risk ZIP codes	0

Wildfire smoke contains PM2.5, carbon monoxide, and volatile organic compounds. Even short-term exposure can trigger asthma attacks and respiratory distress.

Indoor Mold Risk

Springfield has an average mold risk score of 49 out of 100, with 4 ZIP codes in the high-risk category.

Factor	Value
Mold risk score	49/100
Average humidity	68% RH
High-risk ZIPs	4
Peak season	summer high

Mold risk is influenced by humidity levels, housing age (older homes have more moisture issues), flood history, and water infrastructure quality. Indoor humidity above 60% creates favorable conditions for mold growth.

Signs of mold problems: musty odors, visible growth on walls or ceilings, worsening allergies indoors, condensation on windows. Professional mold testing ($300-$600) can identify hidden issues.

Health Recommendations

With good air quality (AQI 46), Springfield residents can enjoy outdoor activities without significant restrictions. General tips:

Monitor AQI during wildfire season for temporary spikes
Use HEPA air purifiers indoors if you have respiratory conditions
Maintain indoor humidity between 30-50% to prevent mold

Springfield vs. Nearby Missouri Cities

How Springfield's air quality compares to nearby cities:

City	AQI	Category	Population
Springfield	46	Good	211,934
Columbia	49	Good	206,439
O Fallon	81	Moderate	139,544
Harrisburg	48	Good	126,254

ZIP Codes in Springfield

Springfield covers 16 ZIP codes. Air quality can vary by neighborhood based on proximity to highways, industrial areas, and green spaces. Check your specific ZIP code for localized data.

Data Sources

Air quality: EPA AirNow — real-time and historical AQI data
Wildfire risk: FEMA National Risk Index
Mold risk: Derived from EPA, FEMA, Census ACS (humidity, housing age, flood history)
Monthly AQI: EPA Air Quality Statistics

Updated daily.

Frequently Asked Questions

Is the air safe to breathe in Springfield?

Yes — Springfield's average AQI is 46 (Good). Air pollution poses little or no risk for the general population.

How many unhealthy air days does Springfield have?

Springfield has zero recorded unhealthy air quality days, which is excellent. Air quality can still vary seasonally due to wildfire smoke, pollen, or industrial activity.

What is the AQI in Springfield?

The average Air Quality Index (AQI) in Springfield is 46, categorized as Good. The primary pollutant is PM2.5. AQI ranges from 0-500, where 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and 151+ Unhealthy.

What is the wildfire risk in Springfield?

Springfield has a wildfire risk score of 29 out of 100. Low wildfire risk means smoke events are uncommon, but regional fires can still temporarily affect air quality.

Is mold a concern in Springfield?

Springfield has a mold risk score of 49 out of 100, based on humidity, precipitation, and temperature data. Maintain good ventilation and address any water intrusion promptly to prevent mold growth.

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