Eliminating the CSB will come at a cost to the safety of plant workers and neighboring communities, especially along the Gulf Coast, where the bulk of the U.S. petrochemical industry is concentrated, said former CSB officials and environmental groups. “Closing the CSB will mean more accidents at chemical plants, more explosions and more deaths,” said Beth Rosenberg, a public health expert who served on the CSB board from 2013 to 2014. On average, hazardous chemical accidents happen once every other day in the U.S., according to Coming Clean, an environmental health nonprofit. Coming Clean documented 825 fires, leaks and other chemical-related incidents between January 2021 and October 2023. The incidents killed at least 43 people and triggered evacuation orders and advisories in nearly 200 communities.