Ethylene oxide mainly becomes an environmental and health hazard in any community when it is released as a gas into the surrounding air. Ethylene oxide exposure includes inhalation and ingestion.
The map above constructed by air alliance Houston (Generated April 6, 2020) shows areas with EtO Cancer risk greater than 100/1 million as stars, top 25 EtO emitting facilities from 2008-2018 as red dots and other EtO facilities as black dots. Ethylene oxide facilities span the country mainly located on the east coast and gulf coast.
In a close up we can see Huntsman Petrochemical highlighted within the elevated EtO cancer risk.