Air Quality Alert: Houston-Galveston-Brazoria Reaches Unhealthy for Sensitive Groups Level
Areazine synthesizes this EPA air-quality advisory directly from EPA's official public data feed. See our methodology for full source attribution and refresh cadence.
On February 23, 2026, air quality in the Houston-Galveston-Brazoria area reached an AQI of 105 for fine particulate matter, categorized as Unhealthy for Sensitive Groups.
What this EPA air-quality advisory tells you, and what most readers miss
This notice was issued by EPA on April 6, 2026 and geographically references Houston-Galveston-Brazoria, TX. Its severity classification of "low" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Air Quality - determines the informational context it sits in, and which agency or body is the authoritative source for updates.
Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to verify its scope, source, and timestamp, then compare related notices without assuming that one record proves a broader trend.
Areazine pairs this record with the original agency URL so you can check the primary source before acting. Its related labels are air-quality, epa, aqi, Houston-Galveston-Brazoria.
Current Air Quality
As of February 23, 2026, the Houston-Galveston-Brazoria reporting area in Texas is experiencing elevated air pollution levels. The primary pollutant of concern is fine particulate matter (PM2.5), which has reached an Air Quality Index (AQI) of 105, placing it in the "Unhealthy for Sensitive Groups" category. Additionally, ozone (O3) levels were measured at an AQI of 41, which is considered "Good."
What This Means
An AQI level of 105 for PM2.5 indicates that air quality is becoming unhealthy for certain members of the population. While the general public is less likely to be affected, fine particulate matter at this concentration can pose health risks to individuals with specific sensitivities.
Who Should Take Precautions
The "Unhealthy for Sensitive Groups" category specifically impacts:
- People with heart or lung disease
- Older adults
- Children and teenagers
What You Should Do
Members of sensitive groups should consider reducing prolonged or heavy exertion outdoors. It is advisable to take more breaks and do less intense activities. Watch for symptoms such as coughing or shortness of breath. The general public is not expected to be affected at this AQI level.
Source
Data provided by EPA AirNow.
Original source: EPA Official Notice ↗
Related Air Quality
All Air Quality →Frequently Asked Questions
Common questions about this EPA air-quality advisory.