ISSN : 1738-4125(Print)
ISSN : 2287-7509(Online)
ISSN : 2287-7509(Online)
공동주택 실내 이산화질소 농도의 실외공기 및 실내발생원 기여율 추정
Contribution of Outdoor Air and Indoor Source on Nitrogen Dioxide Concentration in Apartments
Abstract
Exposure to nitrogen dioxide (NO2) can produce adverse health effects. Various indoor and outdoorcombustion sources make NO2 the most ubiquitous pollutant in the indoor environment. Indoor air qualitycan be affected by indoor sources, ventilation, decay and outdoor levels. Although technologies exist tomeasure these factors, direct measurements are often difficult. In the present paper, we used a massbalance model and regression analysis, penetration factor (ventilation rate divided by the sum of ventilationrate and deposition constant) and source strength factor (source strength divided by the sum of ventilationrate and deposition constant) were calculated using multiple indoor and outdoor measurements with 10houses. Subsequently, mean contributions of indoor and outdoor sources were 28.86% and 81.09%,respectively, suggesting that both indoor and outdoor sources had contributions to indoor concentrations ofNO2.
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