가습기살균제 환경노출 판정등급에 따른 개인 노출 특성 분포 - 4-1차와 4-2차 신청자를 중심으로 -

• 영문명: Individual Exposure Characteristics to Humidifier Disinfectant according to Exposure Classification Groups - Focusing on 4-1 and 4-2 Applicants -
• 발행기관: 한국환경보건학회
• 저자명: 이슬아(Seula Lee) 윤정교(Jeonggyo Yoon) 옥정원(Jeongwon Ock) 조은경(Eun-Kyung Jo) 류현수(Hyeonsu Ryu) 양원호(Wonho Yang) 최윤형(Yoon-Hyeong Choi)
• 간행물 정보: 『1. 한국환경보건학회지』제45권 제4호, 370~380쪽, 전체 11쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2019.08.30

영문 초록

Objective: This study was performed to investigate the distribution of individual exposure characteristics according to an exposure assessment classification for humidifier disinfectant and to identify the factors that influence assessment classification. Methods: We examined the exposure characteristics of 4,482 subjects who applied for the 4-1 and 4-2 assessments of environmental exposure to humidifier disinfectant conducted by the Korea Environmental Industry & Technology Institute (KEITI). Environmental exposure assessment classification was assessed using the following seven criteria: 1) Distance from humidifier to face; 2) Spray direction; 3) Time used, daytime 4) Time used, during sleep; 5) Time used, cumulative; 6) Exposure intensity; and 7) Cumulative exposure level. Each criteria was then classified as ‘high’ or low’. When participants answered for more than four criteria, exposure assessment was determined as ‘definite,’ ‘probable,’ or ‘possible’ depending on the ratio of ‘high’ responses. If participants’ responses were inconsistent, exposure assessment was listed as ‘unlikely.’ If participants answered for less than four criteria, exposure assessment was considered ‘indeterminate.’ Results: For the exposure assessment classes, definite was assigned to 38.5% (1,725 subjects), probable assigned to 32.9% (1,474 subjects), 25.0% (1,122 subjects) were assigned to as possible, unlikely assigned to 0.1% (3 subjects), and indeterminate assigned to 3.5% (158 subjects). Overall, participants who used ‘Oxy Ssakssak New Gaseupgi Dangbun,’ ‘Aekyung Gaseupgi Mate,’ ‘Homeplus Gaseupgi Chungjungje,’ and ‘E-Mart Gaseupgi Salgyunje’ totaled 2,996, 557, 176, and 162 subjects, respectively. There was a statistical difference in the type of humidifier disinfectant products between high-exposed and low-exposed participants. Based on the assessment criteria of humidifier disinfectant exposure, subjects were likely to be in the highly exposed classes (definite and probable) when the subjects were exposed 1) for more than ten hours per day and 2) for more than four hours at night 3) when the total cumulative exposure time was higher than the average, 4) when the direction of humidifier spray was toward the face, 5) when the respiratory position was less than 1 meter of distance from the humidifier, 6) when the concentration of indoor contaminants (ug/m3) was higher than the average exposure intensity, and 7) when overall exposure level (ug/m3*hr) was higher than the average exposure level. Conclusion: This study suggests that each exposure assessment criteria was able to appropriately estimate cumulative exposure levels.

목차

I. 서 론

II. 연구 방법

III. 결과 및 고찰

IV. 결 론

키워드

Humidifier disinfectant environmental exposure assessment exposure assessment criteria exposure assessment classification