AIR QUALITY AL

Air Quality in Holy Trinity, AL: Good (43 AQI)

AQI 43 · Good · PM2.5 · Updated 2026-07-18

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

Data: EPA AirNow, FEMA National Risk Index Last verified: 2026-07-18

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. Holy Trinity's average AQI of 43 falls in the "Good" range.

Air Quality by ZIP Code in Holy Trinity

Holy Trinity is covered by a single ZIP code, so one AQI profile applies citywide. Air quality still shifts with wind, season and proximity to pollution sources.

ZIP Code	AQI	Category	Wildfire	Mold
36859	43	Good	7	55	View report →

Air Quality Overview

Holy Trinity, Alabama has good air quality with an average AQI of 43. 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 Holy Trinity

AQI varies across Holy Trinity's 1 ZIP code based on proximity to pollution sources, traffic patterns, and local geography:

ZIP Code	AQI	Category	Wildfire Risk	Mold Score
36859	43	Good	7	55

Wildfire Smoke Risk

Holy Trinity has a low wildfire smoke risk with an average smoke risk score of 7 (scale 0-100). However, smoke from distant wildfires can temporarily degrade air quality even in low-risk areas.

Metric	Value
Avg. smoke risk score	7
Max smoke risk score	7
Fires within 100 km	0
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

Holy Trinity has an average mold risk score of 55 out of 100, with 1 ZIP code in the high-risk category.

Factor	Value
Mold risk score	55/100
Average humidity	73% RH
High-risk ZIPs	1
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 43), Holy Trinity 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

Holy Trinity vs. Nearby Alabama Cities

How Holy Trinity's air quality compares to nearby cities:

City	AQI	Category	Population
Holy Trinity	43	Good	42,267
Saginaw	56	Moderate	41,061
Siluria	56	Moderate	41,061
Opelika	50	Good	43,973

ZIP Codes in Holy Trinity

Holy Trinity covers 1 ZIP code. 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 Holy Trinity?

Yes - Holy Trinity's average AQI is 43 (Good). Air pollution poses little or no risk for the general population.

How many unhealthy air days does Holy Trinity have?

Holy Trinity 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 Holy Trinity?

The average Air Quality Index (AQI) in Holy Trinity is 43, 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 Holy Trinity?

Holy Trinity has a wildfire risk score of 7 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 Holy Trinity?

Holy Trinity has a mold risk score of 55 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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