Unreliable Pollution Reports: For decades, some big polluters were allowed to estimate their emissions using methods the government knew were often unreliable.
Real Pollution Levels: Air monitors at coke manufacturers, chemical plants and other industrial facilities showed far higher emissions than the estimates, records viewed by ProPublica show.
Trump Halts New Rules: The Trump administration has halted rules requiring more than 130 industrial plants to install air monitors and comply with new emission standards.
wolfyvegan in publichealth
Air Pollution From Industrial Facilities Is Far Worse Than Estimated
https://www.propublica.org/article/epa-air-pollution-pittsburgh-clairton-coke-works?=0archived (Wayback Machine)