Air Quality (AQI) & Weather in Hazelwood, MO (63042)

Q: What is the primary air pollutant in Hazelwood, MO?

The primary air pollutants monitored in Hazelwood 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

38.78133, -90.37909

7-Day Forecast

Full Weather for Hazelwood

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 Hazelwood, MO

Get real-time updates on air quality in Hazelwood (63042), 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 Hazelwood, MO. 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 Hazelwood

Air quality in Hazelwood, MO 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 Hazelwood helps filter airborne dust, allergens, pollen, and dangerous fine particles.

Environmental & Demographic Profile — Hazelwood, MO (63042)

The ZIP code 63042 is situated in Hazelwood, located within St. Louis County, MO. According to US Census estimates, the 63042 postal code serves an estimated population of 17,953 residents across an area with a population density of 669.4 people per square mile. Operating under the America/Chicago timezone, local atmospheric telemetry in this area is monitored continuously via nearby regional monitoring stations.

Hazelwood is categorized as a moderately populated suburban region. Suburban atmospheric profiles in this region often reflect regional air transport alongside seasonal domestic heating or commuter vehicle activity.

Geographic & Administrative Details

County: St. Louis County
Coordinates: 38.7813, -90.3791
Timezone: America/Chicago
Associated Regions: St. Louis

Frequently Asked Questions About Hazelwood Air Quality

What is the primary air pollutant in Hazelwood, MO?

The primary pollutants continuously monitored in Hazelwood 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 Hazelwood (63042)?

Outdoor exercise safety in Hazelwood 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 63042?

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.