Air Quality Alert: Philadelphia Air Quality 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 15, 2026, air quality in Philadelphia, PA reached an AQI of 111, 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 the Philadelphia, PA reporting area, the air quality index (AQI) reached a peak of 111 on February 15, 2026. The primary pollutant of concern is fine particulate matter (PM2.5), which is currently classified in the "Unhealthy for Sensitive Groups" category. Other monitored pollutants for the area include Ozone (O3) with an AQI of 31 (Good) and PM10 with an AQI of 38 (Good).
What This Means
An AQI level of 111 is categorized as "Unhealthy for Sensitive Groups." This indicates that air quality is reaching levels where members of sensitive groups may experience health effects, though the general public is less likely to be affected by these conditions.
Who Should Take Precautions
Groups at higher risk from this level of air pollution include people with heart or lung disease, older adults, children, and teenagers. These individuals are more sensitive to the effects of fine particulate matter and should be mindful of their outdoor exposure.
What You Should Do
Members of sensitive groups are advised to reduce prolonged or heavy exertion outdoors. It is recommended to take more breaks and choose less intense activities during this period. The general public is generally not affected at this AQI level and can continue with 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 (1,350 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.