Development of a simple monitoring method for acid gas components

对空气污染物的个人暴露或室内/室外空气环境的可靠了解是空气污染流行病学研究的一个重要因素。在人类总接触量的概念内，个人接触空气污染物取决于人的活动。被动采样器的使用正受到关注，因为它是一种测量实际个人接触的手段，可以通过正确的采样器测量，而不会干扰人类的日常活动。被动采样器的二氧化氮，一氧化氮，二氧化硫，一氧化碳和臭氧的开发，以测量低水平，时间加权平均浓度。该采样器结构紧凑、价格低廉、无危害且易于使用。已在实验室装置中测试了使用此类采样器期间的准确度、精密度和环境因素的影响。该采样器的性能适用于大规模的个人/环境暴露研究和室内外空气污染监测。风洞实验中的实验室测量给出了使用室内空气的四个柳泽徽章的变异系数（cv）值为3.3%。用三个柳泽法（C_x）和Saltzman法（C_y）同时测定了21个监测点的室外二氧化氮浓度。三个徽章的CV值范围为2.5 - 16.9%，Saltzman方法的比较给出了回归方程，相关系数为0.957。

Reliable knowledge of individual exposure or indoor/outdoor air environment to air pollutants is an important element in an epidemiological study of air pollution. Within the concept of total human exposure, personal exposure to air pollutants depend on people's activities. Use of passive samplers is receiving attention as a means to measure actual personal exposure can be measured by the correct sampler without disturbing daily human activity. Passive samplers for nitrogen dioxide, nitrogen monoxide, sulfur dioxide, carbon monoxide, and ozone were developed to measure low-level, time-weighted average concentrations. The sampler is compact, inexpensive, non-hazardous, and easy to use. The accuracy, precision, and effects of environmental factors during the use of such samplers have been tested in laboratory set-ups. The properties of the sampler are applicable to large-scale of both personal/environmental exposure study and indoor/outdoor air pollution monitoring.Laboratory measurements in the wind tunnel experiments gave coefficient of variance (cv) values of 3.3% for four Yanagisawa badges using indoor air. Simultaneous measurements of outdoor nitrogen dioxide concentration using three Yanagisawa badges (C_x) and the Saltzman method (C_y) were carried out at 21 monitoring sites. The cv values for the three badges ranged from 2.5 to 16.9%, and a comparison of the Saltzman method gave the regression equation with a correlation coefficient of 0.957.