Air Quality Alert: Philadelphia, PA 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 14, 2026, air quality in Philadelphia 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
In Philadelphia, PA, the air quality index (AQI) reached a peak of 104 on February 14, 2026. The primary pollutant of concern is fine particulate matter (PM2.5), which is currently in the "Unhealthy for Sensitive Groups" category. Other pollutants measured in the area include Ozone (O3) with an AQI of 34 (Good) and PM10 with an AQI of 40 (Good).
What This Means
An AQI level of 104 falls into the "Unhealthy for Sensitive Groups" category. This means that air quality is considered unhealthy for certain members of the population, though the general public is less likely to be affected by these conditions.
Who Should Take Precautions
Groups at increased risk from the current levels of fine particulate matter include people with heart or lung disease, older adults, children, and teenagers.
What You Should Do
Members of sensitive groups should reduce prolonged or heavy exertion. It is recommended to take more breaks and do less intense activities if spending time outdoors. Watch for symptoms such as coughing or shortness of breath. The general public is not expected to be affected and can continue normal outdoor activities.
Source
Attribution to 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 (1,212 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.