EPA Cautions EtO Air Monitoring Data Indicates 'Background' Sources

EPA officials are cautioning that air monitoring near a high-profile Illinois sterilizing facility that uses ethylene oxide (EtO) -- where agency modeling data have indicated the chemical may pose a higher potential cancer risk to residents -- has detected background levels of EtO that appears to be coming from sources other than the facility. With “ambient monitoring it is important to take enough samples that we are able to discern what the levels look like and what they are attributable...