Air Quality (AQI) & Weather in Saint Paul, MN (55104)

Q: What is the primary air pollutant in Saint Paul, MN?

The primary air pollutants monitored in Saint Paul include Fine Particulate Matter (PM2.5), Coarse Particulate Matter (PM10), Ground-level Ozone (O3), Carbon Monoxide (CO), Nitrogen Dioxide (NO2), and Sulfur Dioxide (SO2).

Air Quality Index

Temperature

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Real-time Temp

Humidity

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Relative humidity

Wind

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Wind Speed

Pollutants

Good

Moderate

USG

Unhealthy

Very Unhealthy

Hazard

Location Map

44.95423, -93.16283

7-Day Forecast

Full Weather for Saint Paul

Past 30 Days — AQI History

Health Advice

Loading recommendations...

Recommendations are indicative. Consult local advisories if you have underlying health concerns.

About Air Quality in Saint Paul, MN

Get real-time updates on air quality in Saint Paul (55104), including detailed metrics for key pollutants like PM2.5, PM10, Ozone (O₃), Carbon Monoxide (CO), Nitrogen Dioxide (NO₂), and Sulfur Dioxide (SO₂).

This dashboard presents live Air Quality Index (AQI) calculations alongside a 7-day weather forecast for Saint Paul, MN. Monitor changing pollution levels, relative humidity, wind speeds, and temperature trends to plan safer outdoor activities for your family.

Understanding AQI Ratings

The standard US Air Quality Index (AQI) runs from 0 to 500. Higher values indicate higher levels of air pollution:

0–50 (Good): Air quality is satisfactory; minimal risk.
51–100 (Moderate): Acceptable; slight concern for sensitive people.
101–150 (USG): Sensitive groups may experience health effects.
151–200 (Unhealthy): General public may begin to feel effects.
201–300 (Very Unhealthy): Health alert; increased risk for everyone.

Air Pollution Prevention & Health Tips for Saint Paul

Air quality in Saint Paul, MN fluctuates based on weather patterns, traffic volume, seasonal industrial output, and atmospheric conditions.

Outdoor Mask Protection

During high PM2.5 pollution spikes (AQI > 150), standard surgical masks are insufficient. N95 or KN95 respirators are recommended for effective filtering.

Indoor Air Purifiers

Using True HEPA air purifiers inside homes and offices in Saint Paul helps filter airborne dust, allergens, pollen, and dangerous fine particles.

Environmental & Demographic Profile — Saint Paul, MN (55104)

The ZIP code 55104 is situated in Saint Paul, located within Ramsey County, MN. According to US Census estimates, the 55104 postal code serves an estimated population of 45,777 residents across an area with a population density of 2,928.8 people per square mile. Operating under the America/Chicago timezone, local atmospheric telemetry in this area is monitored continuously via nearby regional monitoring stations.

Saint Paul is categorized as a densely populated urban core. Higher local traffic volume, commercial activity, and building density mean microclimate factors can lead to localized particulate accumulation during stagnation periods.

Geographic & Administrative Details

County: Ramsey County
Coordinates: 44.9542, -93.1628
Timezone: America/Chicago
Associated Regions: Ramsey

Frequently Asked Questions About Saint Paul Air Quality

What is the primary air pollutant in Saint Paul, MN?

The primary pollutants continuously monitored in Saint Paul include Fine Particulate Matter (PM2.5), Coarse Particulate Matter (PM10), Ground-level Ozone (O₃), Carbon Monoxide (CO), Nitrogen Dioxide (NO₂), and Sulfur Dioxide (SO₂).

Is it safe to exercise outdoors today in Saint Paul (55104)?

Outdoor exercise safety in Saint Paul depends on the real-time Air Quality Index (AQI). An AQI between 0 and 50 is ideal for all outdoor activities. If the index rises above 100, sensitive individuals should reduce prolonged outdoor exertion.

How often is the air quality data updated for ZIP code 55104?

Air quality observations and weather metrics on this page are updated in real-time using continuous telemetry from local satellite feeds and ground station monitors.