A chemical mishap in Puerto Rico reveals the dark side of sterilization plants

A Puerto Rican community grapples with the lingering effects of ethylene oxide exposure, decades after an industrial accident left one worker permanently impaired.

Lylla Younes, Naveena Sadasivam, & Joaquín A. Rosado Lebrón report for Grist and el Centro de Periodismo Investigativo.


In short:

  • Ethylene oxide, a gas used to sterilize medical equipment, has been linked to severe health issues, including cancer, in Salinas, Puerto Rico.
  • A 2003 workplace accident exposed worker Henry Morales to the gas, leading to lifelong neurological damage.
  • Recent EPA studies show that residents near Steri-Tech, where Morales worked, are exposed to dangerously high levels of this toxic chemical.

Key quote:

“They would implement rules and say, ‘If you want to work, then work, and if you can’t accept things here, then leave.’”

— former Steri-Tech employee (name withheld for fear of legal retribution)

Why this matters:

Salinas is grappling with the invisible threats that industrial chemicals pose to public health, especially when the very air they breathe becomes a vector of disease. The environmental toll is equally staggering, as the gas, though it breaks down over time, leaves behind a toxic legacy. Read more: US manufacturers persist in use of cancer-causing ethylene oxide despite bans abroad.

About the author(s):

EHN Curators
EHN Curators
Articles curated and summarized by the Environmental Health News' curation team. Some AI-based tools helped produce this text, with human oversight, fact checking and editing.

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