In a bid to protect public health, the U.S. Environmental Protection Agency (EPA) is cracking down on a cancer-causing gas used predominantly to sterilize medical gear and spices. New rules, requiring commercial sterilization operations to slash ethylene oxide emissions by 90%, were announced on Thursday. This move was influenced by the acknowledgment of ethylene oxide's dangers, which have been known since the late '70s for its capability to mutate genes and cause several types of cancer, including breast cancer, leukemia, and lymphomas. This potent gas, commonly referred to as EtO, has long been the focus of public and political scrutiny over its harmful effects on surrounding communities, particularly those populated by low-income, Black, and Latino residents.
With around 90 sterilization plants in 30 states and Puerto Rico under the EPA's lens, there is a significant push to mitigate toxic air pollution. According to the Chicago Tribune, some of the highest risks for cancer due to toxic air have been identified in neighborhoods near these plants. Communities have been fighting for cleaner air, exemplified by the closure of Sterigenics' Willowbrook sterilization plant in Illinois and the consequent reduction of emissions from other facilities nationwide. Even with the pressure mounting from community organizers and bi-partisan political forces, the industry has appeared defiant, with companies such as Sterigenics claiming in a June statement that "low levels of EtO are safe and do not increase the risk of cancer"
However, environmental and public health advocates believe the final rule doesn't go far enough. Mirroring this sentiment, Senator Tammy Duckworth (D-Ill.) hailed the new restrictions, noting in a statement obtained by the Washington Post, "For too long, EtO emissions from commercial sterilization facilities have damaged public health in surrounding communities and significantly increased the risk of nearby residents developing cancer in their lifetimes." Despite demands from the medical technology industry, which cautioned about potential disruptions to the medical supply chain, larger facilities have been given two years to comply, with smaller ones getting up to four years, including the potential for a one-year extension.
This balance between environmental justice and safeguarding supply chains typifies the current administration's struggle to align its health and industry priorities. Still, EPA Administrator Michael Regan said, "We have followed the science and listened to communities to fulfill our responsibility to safeguard public health from this pollution." His words underscore a commitment to mitigating health risks associated with EtO emissions, especially in vulnerable populations. The EPA's stringent rules, while seen as necessary by many, still face opposition from an industry that emphasizes the critical role of EtO in the sterilization of approximately half of all U.S. medical supplies, as stated by both the Food and Drug Administration and the medical sterilization industry.
The EPA's actions reflect a delayed but determined reaction to decades' worth of scientific evidence highlighting the health risks posed by ethylene oxide emissions. Despite the pushback from certain industrial corners and the extended timelines for compliance, the message rings clear: public health, particularly that of disadvantaged communities, must take precedence in the long-running battle against air pollution.
