propublica.org/article/epa-air…

The #EPA Let Companies Estimate Their Own #Pollution Levels. We Discovered Real #Emissions Are Far Worse.
by Lisa Song, photography by Annie Flanagan for ProPublica

..." Highlights
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."...

The EPA Let Companies Estimate Their Own Pollution Levels. We Discovered Real Emissions Are Far Worse.

The Trump administration has put a stop to EPA rules that would have required more than 130 industrial facilities to install air monitors to measure pollution. Millions of people living near these plants face an increased risk of cancer.

^{andrea.wise@propublica.org (ProPublica)}