Philadelphia Air Quality Alert: PM2.5 Levels Unhealthy for Sensitive Groups
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 19, 2026, air quality in Philadelphia, PA reached an AQI of 104, categorized as Unhealthy for Sensitive Groups due to fine particulate matter (PM2.5).
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 Philadelphia, PA. 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, Philadelphia.
Current Air Quality
As of February 19, 2026, the reporting area of Philadelphia, PA is experiencing air quality levels categorized as Unhealthy for Sensitive Groups. The primary pollutant of concern is fine particulate matter (PM2.5), which has reached an Air Quality Index (AQI) value of 104. Other measured pollutants include Ozone (O3) with an AQI of 4 (Good) and PM10 with an AQI of 43 (Good).
What This Means
An AQI level of 104 falls into the "Unhealthy for Sensitive Groups" category. According to EPA standards, this indicates that air quality is unhealthy for members of sensitive populations, though the general public is less likely to be affected.
Who Should Take Precautions
Groups at increased risk from exposure to fine particulate matter at this level include:
- People with heart or lung disease
- Older adults
- Children
- People with diabetes
What You Should Do
Members of sensitive groups should consider reducing prolonged or heavy exertion outdoors. It is recommended to take more breaks, shorten the intensity of outdoor activities, and watch for symptoms such as coughing or shortness of breath. The general public can continue normal outdoor activities.
Source
Data provided by EPA AirNow.
Original source: EPA Official Notice ↗
Related Air Quality
All Air Quality →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this EPA air-quality advisory: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,242 characters here).
Similar severity timing
Same severity (low) notices issued closest in time to April 6, 2026.
Frequently Asked Questions
Common questions about this EPA air-quality advisory.