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KMID : 1138720080340010068
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Korean Public Health Research
2008 Volume.34 No. 1 p.68 ~ p.79
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Changes in Ethylene Oxide Concentrations Caused by Ventilating Opening in a Hospital
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Park Seong-Jun
Lee Won-Ho
Lee Kwan
Lee Kyu-Chun
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Abstract
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Objective: This study was carried out to observe the status of exposure to ethylene oxide(EtO) and changes of ethylene oxide concentrations according to the installation of ventilating opening in a hospital.
Methods: We executed the measurement of ethylene oxide(EtO) concentration without the ventilating opening in 2003, and did with the ventilating opening in 2004. We measured the EtO concentration in workers, and also did in a sterilizer(50ℓ), a indoor, a storehouse, a table. We made the ventilating opening additionally at the exhaust pipe of existing order sterilizer and installed an upper part hood a local exhaust ventilation system sterilizer(50ℓ). The differences in EtO concentration were analyzed between before and after the installation ventilating opening using the Wilcoxon singed rank test, employing the SPSS 12.0 for Windows package.
Results: The concentration before installation of the ventilating opening was 0.578 (0.169-7.853) ppm, but after installation of the ventilating opening it was 0.033 (0.002-0.329) ppm (p<0.01).
Conclusions: We used an alternative ventilation capacity of a central supply room. We confirmed the degrade of a EtO concentration through installation the ventilating opening additionally to care. Furthermore our authors hope that it need to develop the methods to decrease the concentration of EtO by mechanics, and to perform the wide epidemiologic survey for the concentration of EtO and its health effects.
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KEYWORD
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Ethylene Oxide, Hospital, Sterilizer, Ventilating Opening
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