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 ...

Philadelphia officials say residents of the city's Frankford section can return to their normal routines after a massive fire at an industrial building on Christmas Eve prompted air quality concerns.

PHILADELPHIA (WPVI) -- Other than a spotty shower late Wednesday, much-needed rainfall arrives late in the week. WEDNESDAY: Our mildest day of the week with clouds and some sun and a gusty breeze ...