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Posted on: November 21, 2018

Ethylene Oxide Emissions in Lake County, Illinois

On November 2, 2018, the Lake County Health Department learned of concerns surrounding ethylene oxide emissions from Medline Industries in Waukegan and Vantage Specialty Chemicals in Gurnee. 

The Health Department immediately initiated communication with the U.S. Environmental Protection Agency (EPA) and Illinois Environmental Protection Agency (IEPA) to better understand the situation and express the public’s desire for appropriate air monitoring and timely and transparent communication. The Health Department has maintained regular communication with these agencies, which have sole jurisdiction for regulating emissions.

The U.S. EPA published a Lake County-specific web page on November 21, 2018. Residents seeking information about ethylene oxide in Lake County can find the latest updates at Questions and concerns can be sent via email to the U.S. EPA at

In partnership with the Health Department, the Village of Gurnee and City of Waukegan hired GHD Services, Inc to conduct one month of air monitoring. Monitoring began the week of June 3, 2019. For more information on the air monitoring program, visit our Ethylene Oxide (EtO) Monitoring Frequently Asked Questions page. Information on Lake County Health Department activities related to ethylene oxide emissions can be found on our Ethylene Oxide in Lake County page. Sampling results are available on the EtO Monitoring Results page.

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