Data: IQAir; Note: Among cities with at least 500k metro-area residents; Chart: Kavya Beheraj/Axios Philadelphia's average air quality got worse in 2023, according to the World Health Organization ...

Wildfire smoke will drift around the area today after being pushed toward the I-95 corridor overnight. Air quality is at a ...

On Sunday, Philadelphia’s Air Quality Index was rated in the orange category for high amounts of particulate matter.

The air quality in the City Hall subway station in downtown Philadelphia is much worse than on the sidewalks directly above the station. That is a key finding of our new study published in the Journal ...

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Gloucester County is providing shelter for those impacted by the aftermath of a wildfire in the Glassboro area.

Data: IQAir; Note: Among cities with at least 500k metro-area residents; Chart: Kavya Beheraj/Axios Philadelphia's average air quality got worse in 2023, according to the World Health Organization ...

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