AIR QUALITY MA

Air Quality in Fall River, MA: Good (46 AQI)

AQI 46 · Good · Ozone · Updated 2026-05-03

Fall River'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. Fall River's average AQI of 46 falls in the "Good" range.

Air Quality Map: Fall River, MA

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 Fall River

AQI varies across Fall River's 5 ZIP codes based on proximity to pollution sources and local geography.

ZIP Code	AQI	Category	Wildfire	Mold
02720	46	Good	19	58	View report →
02721	46	Good	19	58	View report →
02722	46	Good	19	34	View report →
02723	46	Good	19	52	View report →
02724	46	Good	19	58	View report →

Air Quality Overview

Fall River, Massachusetts has good air quality with an average AQI of 46. This means air pollution poses little or no risk. The dominant pollutant measured is Ozone.

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: Ozone

Ground-level ozone forms when pollutants from cars, power plants, and industrial facilities react with sunlight. Unlike stratospheric ozone, ground-level ozone is harmful to breathe.

Health effects of ozone exposure:

Irritation of the respiratory system
Reduced lung function
Aggravation of asthma and chronic lung diseases
Increased susceptibility to respiratory infections

Peak times: Ozone levels are typically highest on hot, sunny afternoons. Exercise outdoors in the morning when levels are lower.

Air Quality by ZIP Code in Fall River

AQI varies across Fall River's 5 ZIP codes based on proximity to pollution sources, traffic patterns, and local geography:

ZIP Code	AQI	Category	Wildfire Risk	Mold Score
02720	46	Good	19	58
02721	46	Good	19	58
02722	46	Good	19	34
02723	46	Good	19	52
02724	46	Good	19	58

Wildfire Smoke Risk

Fall River has an elevated wildfire smoke risk with an average smoke risk score of 19 (scale 0-100). There have been 10 fires recorded within 100 km of city ZIP codes.

Metric	Value
Avg. smoke risk score	19
Max smoke risk score	19
Fires within 100 km	10
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

Fall River has an average mold risk score of 52 out of 100, with 3 ZIP codes in the high-risk category.

Factor	Value
Mold risk score	52/100
Average humidity	68% RH
High-risk ZIPs	3
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), Fall River 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

Fall River vs. Nearby Massachusetts Cities

How Fall River's air quality compares to nearby cities:

City	AQI	Category	Population
Fall River	46	Good	94,000
Barnstable	44	Good	95,560
East Falmouth	44	Good	97,551
West Falmouth	44	Good	97,551

ZIP Codes in Fall River

Fall River covers 5 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 Fall River?

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

How many unhealthy air days does Fall River have?

Fall River 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 Fall River?

The average Air Quality Index (AQI) in Fall River is 46, categorized as Good. The primary pollutant is Ozone. 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 Fall River?

Fall River has a wildfire risk score of 19 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 Fall River?

Fall River has a mold risk score of 52 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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