Group Against Smog & Pollution

BIG NEWS: U.S. Steel will pay a $1.5 million penalty and make extensive improvements at its Edgar Thomson facility in Braddock Borough as...

GASP’s resident smoke reader and longtime project manager Sue Seppi snapped into action, reviewing Breathe Cam footage of the facility,...

Allegheny County Health Department is now seeking public comment on several air quality permits. Two notices were published in late...

Editor’s Note: This blog was updated at 6:47 p.m. Nov. 19 to clarify the health impacts related to hydrogen sulfide. 2024 Update: Learn...

In addition to spiked levels of fine particulate matter, sulfur dioxide (SO2) was also elevated, hitting 71 ppb Thursday night, just shy...

Editor’s Note: GASP staff members took a deep dive into a federal class-action lawsuit filed in April against U.S. Steel on behalf of its...