In-depth survey report: control technology for ethylene oxide sterilization in hospitals at Shriners Hospitals for Crippled Children, Burns Institute - Cincinnati Unit, Cincinnati, Ohio, no. CT-146-18b.
NIOSH 1985 Jul; :1-36
An in depth survey of control technology for reducing exposure during ethylene-oxide (75218) sterilization occurred at Shriners Hospital for Crippled Children/Burns Institute (SIC-8062), Cincinnati, Ohio, in March, 1985. Short and long term concentrations of ethylene-oxide were determined. Ventilation measurements were made. Engineering controls consisted of isolating the sterilizer in a ventilated recess room, a ventilated air gap in the drain line, an exhaust slot hood over the sterilizer door, in/chamber aeration, and work practices. Long term personal ethylene-oxide exposures averaged 0.03 part per million (ppm). All long term area concentrations were less than 0.09ppm. Short term personal exposures averaged 4.12ppm during load removal operations. Short term area exposures averaged 1.42ppm. General and local exhaust ventilation rates exceeded those of the supply air. The author notes that under certain climatic and wind conditions, exhaust air from the recess room might be entrained in the supply air plenum. She concludes that the engineering controls work very well in limiting exposures and maintaining low ethylene-oxide concentrations in the workroom air. Recommendations include establishing a monitoring program and constructing an exhaust duct for the recess room to prevent entrainment of ethylene-oxide in the supply air intake.
NIOSH-Author; NIOSH-Survey; Field-study; Medical-facilities; Industrial-hazards; Ventilation; Exposure-levels; Quantitative-analysis; Analytical-models; Industrial-hygiene; CT-146-18b; Region-5
Field Studies; Control Technology
NTIS Accession No.
National Institute for Occupational Safety and Health