EtO is a human carcinogen. It causes cancer in humans. Scientific evidence in humans indicates that regular exposure to EtO over many years increases the risk of cancers of the white blood cells, including non-Hodgkin lymphoma, myeloma, and lymphocytic leukemia. Studies also show that long-term exposure to EtO increases the risk of breast cancer in women.
Workers who use EtO as a part of their jobs and people who work, live, or go to school or daycare near facilities that use EtO may breathe in EtO at levels that can increase cancer risk. This risk is not the same for everyone and depends on how long a person is exposed over the course of their lifetime or career, as well as how much EtO is actually in the air. The distance from a facility or other EtO source plays a big role in how much EtO might be in the air.
Because children’s bodies are growing, they are expected to be more susceptible to the toxic effects caused by EtO. This is because EtO is mutagenic, meaning it can damage DNA. As children grow, they tend to be more susceptible to the harmful effects caused by chemicals, including chemicals that are mutagenic. For anyone, including children, risks would decrease with decreased exposure.