Mark Schleifstein — ProPublica

Mark Schleifstein

Air Quality Regulators in “Cancer Alley” Have Fallen Dangerously Behind

An audit found that the time it takes the Louisiana Department of Environmental Quality to issue penalties to polluters has doubled. Some companies that have been known to violate air quality rules were able to keep at it for years, or even decades.

Jan. 29, 2021, 6 a.m. EST

New EPA Rules Aim to Reduce Toxic Emissions. But Many “Cancer Alley” Chemical Plants Won’t Have to Change.

The proposed rules reducing emissions across the country would not apply to many of Louisiana’s chemical plants. These facilities release tons of dangerous, cancer-causing chemicals like ethylene oxide, and more plants are on the way.

Nov. 14, 2019, 4:30 p.m. EST

I’ve Investigated Industrial Pollution for 35 Years. We’re Going Backwards.

Decades ago, Mark Schleifstein and his colleagues exposed environmental threats coming out of industrial plants all along the Louisiana section of the Mississippi River. A lot of those plants never went away, and even more are moving in.

Oct. 30, 2019, 12 p.m. EDT

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