top of page

Learn more about the Sterigenics Facility in Kingsbury, Ethylene Oxides carcinogenic properties, and evidence that elevated cancer risks are associated with this plant. 


Who is Sterigenics?

The firm has facilities in Georgia, Texas, California and New York (GF) as well as other locations. Sterigenics uses ethylene oxide, which is an explosive and carcinogenic gas, to sterilize medical devices in thick-walled, steel chambers the size of small shipping containers. The medical devices, still in their
packages, are placed in the sealed chamber, the door is shut and the chamber is flooded with ethylene oxide. The gas penetrates the cardboard boxes in which the devices are packaged, killing all germs. After several hours about half of the gas is pumped out of the chamber and moved to a scrubber where the gas is transformed by a chemical reaction into ethylene glycol – anti-freeze. After that, the chamber is repeatedly subjected to gas washing (pumping air and nitrogen into the chamber), diluting the ethylene oxide below explosive levels. That mixture is also pumped to the scrubber. The remaining trace amount of gas is removed by slightly opening the chamber door, which automatically opens a valve, moving the gas to a catalytic oxidizer. Only then can workers enter the chamber and remove the packaged medical devices. At a California plant in 2004, engineers skipped the gas washing procedure and the EtO ignited, traveling back to the chamber creating a catastrophic explosion which nearly destroyed the plant.

Ethylene Oxide

What is Ethylene Oxide?

EtO was classified by the EPA as a human carcinogen in 2016. The EPA stated that “Evidence in humans indicates that long-term exposure to ethylene oxide 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 ethylene oxide increases the risk of breast cancer in females.” EtO has mutagenic and genotoxic activity in all kinds of cells, including germ cells (sperm and eggs) and in single celled and complex organisms. EtO is capable of destroying most viruses, bacteria and fungi, including bacterial spores.

Evidence of Risk

What do we know about the risk associated with the Kingsbury Plant?

In the 2012-2016 Cancer Registry, out of 57 counties (excluding NYC), Warren County ranked 17th for Non-Hodgkin Lymphoma, 1st for myeloma, 15th for leukemia and 10th for breast cancer. A recent Post-Star article just this month reported on two women who started a support group for victims of multiple myeloma. In 2019, a man living within 3 miles of Sterigenics died of multiple
myeloma. This is a very rare disease and yet only the Bronx ranks above Warren County in its incidence.


We have learned that although the monitoring of EtO emissions at the Sterigenics facility may have been adequate in 2006, it is “obscenely inadequate” now. It is said to be very hard to violate the EPA emissions’ standard. Queensbury is the wrong place to put this facility. There is no ambient monitoring for EtO. Also there is no continuous pH analyzer to monitor the acidity of the liquid in the scrubber. To make the Sterigenics plant safer, continuous pH monitoring and controls are needed to ensure that the proper pH and scrubber efficiency are maintained.


In a recent one-year period, the plant handled 180 tons of EtO. Even a release of 1 to 5% would pose extreme risks to the public. An ambient level of 1 ppm of EtO (the EPA standard) is said to be well above acceptable levels.


Although Warren County itself has a low RSEI (Risk-Screening Environmental Indicators) score, changing the geographic region to a ten-mile radius of downtown Glens Falls causes the score to jump from 56,000 to 1.5 million. That’s because of the Sterigenics facility. 1


What do we know about the risk associated with the Kingsbury Plant?

The public and public officials need to be alerted. We encourage concerned residents to send letters to the editors of all local papers and broadcast media.


Appeal to the company. Send a letter to Kent Adamson, Sterigenics Vice President for Global Environment Health and Safety, informing him of your concern and asking for public comment.


Appeal to the EPA, DEC, DOH, our state legislators, US Senators, and Elise Stefanik, notifying them of what we have learned and demanding action to force the company to invest in necessary equipment upgrades in order to adequately monitor and control all EtO emissions from the facility. If Sterigenics does not take action, we will work to shut down Sterigenics in Kingsbury as the community did in Willowbrook, Illinois, and as communities in Georgia and Texas are trying to do in their states.


Invite someone from the Willowbrook Stop Sterigenics citizens group to a Zoom meeting so they can inform us about what they learned about Sterigenics and how they successfully forced it to shut down and leave the state. (Illinois enacted the strictest emissions requirement for EtO in the nation, making it unprofitable for the firm to operate in the state).

EPA Powerpoint
Feb 16 2023
EPA warns of elevated 
cancer risk near 
Kingsbury plant


A Primer on Sterigenics
and Ethylene Oxide
Evaluation of 
Medical Devices
EPA, DEP struggle to address health, regulatory concerns at public meeting on ethylene oxide
Ethylene Oxide from
Commercial Sterilizers and
Risk in Communities
EPA Expands TRI Reporting Requirements for Ethylene Oxide and Ethylene Glycol by Requiring Reporting for 29 Sterilization Facilities
EPA ltr to Alicia Lemke
Sterigenics - Queensbury, NY
11 states ask EPA
to crack down on
ethylene oxide emissions
bottom of page