Ethylene oxide (EtO) is a chemical commonly used to sterilize medical equipment and in the production of various industrial products. While effective in these applications, ethylene oxide is also a potent carcinogen that poses significant health risks to those exposed. Across the U.S., communities near facilities that emit EtO into the air are facing increased rates of cancer and other serious health conditions. For affected neighborhoods, understanding the health risks of ethylene oxide exposure and legal options for seeking accountability is essential.