From the Houston Chronicle,Sept. 5, 2017

Arkema confirmed that the chemical trailers had rubber tires and insulation that burned in the fires, which could be present in the ash that falls from the sky.

The company declined to estimate any losses to revenue and said it had five plants in the Gulf Coast impacted by the storm, though Crosby was the hardest hit.

Travis Morales, an activist from New York City, held a news conference in Crosby on Monday, accusing the company of “poisoning” the community and demanding free medical care in the aftermath of the blazes. Some locals shared his concerns as they moved back into their homes early Monday.