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KMID : 1156220180440020107
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Journal of Environmental Health Sciences
2018 Volume.44 No. 2 p.107 ~ p.114
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A Strategy for Exposure Assessment of Humidifier Disinfectant Associated to Health Effects
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Park Dong-Uk
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Abstract
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Objectives: The objectives of this study are to describe strategy for exposure assessment of humidifier disinfectant (HD) used in the national program to associate the use of HD with lung injury.
Methods: Strategy and method employed to evaluate HD use characteristics were developed to associate health effects including HD associated with lung injury (HDLI). We developed HD-specific questionnaire to assess potential HD exposure, which was consistently used in the national program. Trained environmental health scientists visited the residences of registered subjects and investigated HD use characteristics.
Results: Major HD exposure related variables were type of HD brand/s used; HD volume added to the humidifier, frequency of HD addition, and time spent in room/s with the humidifier; duration of HD use in the household in average months/year, weeks/month, and days/week; average sleeping hours in a room with an operating humidifier containing a disinfectant; number of HD brands used and type of HD; average distance of the bed from the humidifier in meters.
Conclusions: We concluded that estimated airborne HD concentration was significantly associated with the risk of HDLI.
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KEYWORD
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Humidifier disinfectant (HD), exposure, lung injury, risk
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