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Chemical Emissions Spike Near Sterigenics Facility in Illinois

Feb. 6, 2019, 12:01 PM

Peak ethylene oxide emissions from Sterigenics U.S. LLC’s Willowbrook, Ill., facility spiked to nearly twice the levels detected in earlier testing, according to Environmental Protection Agency data released Feb. 5.

Air monitoring results from late November through late December over 12 days of tests at eight monitoring sites near the facility showed ethylene oxide emissions as high as 11.7 micrograms per cubic meter on Dec. 6 and 10.8 micrograms per cubic meter on Dec. 26.

Earlier emissions conducted Nov. 13-19