Excerpt from long article:

It’s become an unfortunately appropriate symbol for Texas City, which has suffered disaster after disaster in the years since. In 1987, a chemical leak at a Marathon Petroleum Company facility released hydrofluoric acid into the air, sending 140 people to the hospital, with 900 more treated for respiratory and eye problems and 3,000 evacuated.

*Article titled How a Fertilizer Accident Led to the Deadliest Industrial Disaster in American History online at https://www.theringer.com/features/2017/8/24/16186306/texas-city-disaster-70th-anniversary