How often is the air quality data updated for ZIP code 75201?

Telemetry data for ZIP code 75201 updates live via satellite networks and station readings.

Weather & Air Quality in Johnston City, IL (62951)

Q: What is the primary air pollutant in Johnston City, TX?

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

Q: Is it safe to exercise outdoors today in Johnston City (75201)?

Outdoor exercise safety in Johnston City depends on real-time Air Quality Index (AQI) values. Levels below 50 are safe for all groups, while levels above 100 suggest sensitive individuals should limit prolonged exertion.

Environmental & Demographic Profile — Johnston City, IL (62951)

Postal region 62951 covers Johnston City, IL within Williamson County. With an estimated population of 5,381 residents and a population density of 75.1 people/sq mi, local atmospheric dynamics are regularly evaluated. Located in the America/Chicago time zone, live monitoring tracks real-time shifts in ambient conditions.

Johnston City operates within a low-density regional landscape. While direct vehicle output is localized, air quality metrics remain susceptible to agricultural particulate movement and wide-area wind dispersal.

Geographic & Administrative Details

County: Williamson County
Coordinates: 37.8264, -88.9261
Timezone: America/Chicago
Associated Regions: Williamson

Frequently Asked Questions About Johnston City Air Quality

What is the primary air pollutant in Johnston City, IL?

Primary pollutants monitored in Johnston City 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 Johnston City (62951)?

Safety depends on the live Air Quality Index (AQI). An index between 0 and 50 represents ideal conditions. If readings rise above 100, sensitive individuals should reduce outdoor exertion.

How often is air quality data updated for ZIP code 62951?

Telemetry feeds and station observations update live via atmospheric tracking models.

How Weather Data is Calculated

Weather measurements on AQIFinder.com are computed via high-resolution numerical weather prediction models and meteorological station observations provided directly through open API data sources.

1. Temperature & Atmospheric Physics

Air temperature measurements are recorded in degrees Celsius (°C). Sensors utilize radiation shields to filter interference from solar reflection, guaranteeing precise ambient readings.

2. Integration with Air Quality (AQI)

Atmospheric dynamics like boundary layer height, temperature inversions, and local wind fields directly determine particulate dispersal (PM2.5 / PM10) and chemical pollutant behavior.

Weather Dashboard — Johnston City