일부 공단지역 내 이산화질소에 의한 개인노출 농도에 관한 연구
Personal Exposure Level of Nitrogen Dioxide in an Industrial Area
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초록
This study was conducted in industrial area. The level of nitrogen dioxide was measured indoor, outdoor, work and personal in an study area within 5 km from source of pollution and control area 15 km farther from August, 2006 to September. The followings are the summary of this research. The concentration of the indoor and the outdoor NO2 levels in the industrial area are 18.41±6.35 ppb, 18.51±3.26 ppb each, and the indoor/outdoor concentration rate is 0.99. The concentration of NO2 in the workplace is 18.59±10.16 ppb, and the individual exposure rate is 18.80±5.71 ppb. The concentration of the indoor and the outdoor NO2 levels control area are 12.57±3.82 ppb, 9.68±2.16 ppb each, and the indoor/outdoor concentration rate is 1.33. The personal exposure rate is 14.49±10.06 ppb. The residents of the each area and those of the comparative area spend 80.9% and 76.9% each their time in the indoor. It shows they spend most of their time in indoor. The predictions of the individual exposure rates in the industrial area and the comparative area are 15.10±6.14 ppb and 10.52±3.82 ppb each, The concentration levels measured by passive sampler are 18.80±5.71 ppb and 14.49±10.34 ppb each. The result of the research is the analysis of the personal exposure rate in indoor, outdoor and workplace of industrial area. This research may bo used as a basic data to manage and to establish the plan for NO2 gas of the industrial area.
Abstract
This study was conducted in industrial area. The level of nitrogen dioxide was measured indoor, outdoor, work and personal in an study area within 5 km from source of pollution and control area 15 km farther from August, 2006 to September. The followings are the summary of this research. The concentration of the indoor and the outdoor NO2 levels in the industrial area are 18.41±6.35 ppb, 18.51±3.26 ppb each, and the indoor/outdoor concentration rate is 0.99. The concentration of NO2 in the workplace is 18.59±10.16 ppb, and the individual exposure rate is 18.80±5.71 ppb. The concentration of the indoor and the outdoor NO2 levels control area are 12.57±3.82 ppb, 9.68±2.16 ppb each, and the indoor/outdoor concentration rate is 1.33. The personal exposure rate is 14.49±10.06 ppb. The residents of the each area and those of the comparative area spend 80.9% and 76.9% each their time in the indoor. It shows they spend most of their time in indoor. The predictions of the individual exposure rates in the industrial area and the comparative area are 15.10±6.14 ppb and 10.52±3.82 ppb each, The concentration levels measured by passive sampler are 18.80±5.71 ppb and 14.49±10.34 ppb each. The result of the research is the analysis of the personal exposure rate in indoor, outdoor and workplace of industrial area. This research may bo used as a basic data to manage and to establish the plan for NO2 gas of the industrial area.
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