城市居住建筑室内空气污染研究

Study on Air Pollution in Urban Residential Buildings

污染物接触量是用以衡量环境污染对人类健康影响的指标之一。调查结果显示,香港居民日常生活主要在各类室内环境,特别是居住建筑中度过,其室内空气污染对居民健康构成威胁。本文的研究首先选择了多间香港不同类型居住建筑,对其室内PM10、CO、NO2等主要室内污染物浓度进行监测,并分析了室内、外PM10浓度与居民室内各种活动等其它有关因素之间的相关关系。其次,结合香港居民日常时间安排调查的结果,计算出各种室内污染物的接触量,对居住建筑室内环境污染对居民健康的影响进行了初步评估。

Pollutant exposure is one of the major indicators for assessing the adverse health effect caused by atmospheric pollution to human beings. Hong Kong people spend most of their daily time in various indoor environments, especially in residential buildings. Since then, the indoor air pollution of residential buildings does adverse health effect to Hong Kong population. In this research project, some major indoor air pollutants, such as PM10, CO and NO2, were monitored in various dwelling flats. The relationships among indoor PM10 concentration, outdoor PM10 concentration and occupant＇s activities were analyzed through a multiple regression model. Combining with the results of time budget survey, the dwelling indoor exposures of various pollutants were calculated for the estimation of health risk to Hong Kong population.