AQIFinder.com
Track Air Quality & Weather in Real Time

AQI & Weather Dashboard — Crystal City, TX (78839)

Rendered: 2026-08-22 10:56:14 — Live data loading from Open-Meteo API...

Air Quality Index

--

Temperature

--°C
Real-time Temp

Humidity

--%
Relative humidity

Wind

-- km/h
Wind Speed

Pollutants

Good
Moderate
USG
Unhealthy
Very Unhealthy
Hazard

Location Map

28.71282, -99.75516

7-Day Forecast

Full Weather for Crystal City

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 Crystal City, TX

Get real-time updates on air quality in Crystal City (78839), 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 Crystal City, TX. 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 Crystal City

Air quality in Crystal City, TX 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 Crystal City helps filter airborne dust, allergens, pollen, and dangerous fine particles.

Environmental & Demographic Profile — Crystal City, TX (78839)

The ZIP code 78839 is situated in Crystal City, located within Zavala County, TX. According to US Census estimates, the 78839 postal code serves an estimated population of 7,333 residents across an area with a population density of 11.6 people per square mile. Operating under the America/Chicago timezone, local atmospheric telemetry in this area is monitored continuously via nearby regional monitoring stations.

Crystal City is categorized as a low-density or regional geographic area. Lower industrial activity generally reduces localized vehicular pollution, though ambient air quality can still be impacted by agricultural particulate matter, regional wind currents, or seasonal meteorological activity.

Geographic & Administrative Details

  • County: Zavala County
  • Coordinates: 28.7128, -99.7552
  • Timezone: America/Chicago
  • Associated Regions: Zavala, Dimmit

Frequently Asked Questions About Crystal City Air Quality

What is the primary air pollutant in Crystal City, TX?

The primary pollutants continuously monitored in Crystal 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 Crystal City (78839)?

Outdoor exercise safety in Crystal City 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 78839?

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.