School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, China.
Front Public Health. 2021 May 5;9:579299. doi: 10.3389/fpubh.2021.579299. eCollection 2021.
Quality-of-life is improving daily with continuous improvements in urban modernization, which necessitates more stringent requirements for indoor air quality. Fuzzy assessment enables us to obtain the grade of the evaluation object by compound calculation with the help of membership function and weight coefficient, overcoming the limitations of traditional methods applied to develop environmental quality indices. First, this study continuously measured SO, O, NO, NO, CO, CO, PM, PM, and other chemical pollutants during the daytime operating hours of a library and a canteen. We analyzed the concentration distributions of the particles in the air were discussed based on 31 different particle diameters. Finally, the experimental data in department store and waiting hall were analyzed by fuzzy evaluation, with the following results. (1) The library and canteen PM concentrations peaked at 07:45 in the morning and was elevated during the afternoon (48.9 and 59 μg/m, respectively). (2) The Pearson correlation coefficient of the PM and PM concentrations in the library was 0.98. PM and SO in the canteen were negatively correlated, with a correlation coefficient of -0.65. PM and PM were always highly positively correlated. (3) The high concentration of particles in the library was associated with the small particle size range (0.25~0.45 μm). (4) By applying the fuzzy comprehensive evaluation method, the library grade evaluation was the highest level, and the waiting hall was the lowest. This study enhances our understanding of the indoor chemical contamination relationships for public buildings and highlights the urgent need for improving indoor air quality.
随着城市现代化进程的不断推进，生活质量日益提高，这就对室内空气质量提出了更严格的要求。模糊评价通过隶属函数和权重系数的复合计算，可以获得评价对象的等级，克服了传统方法应用于环境质量指数开发的局限性。首先，本研究在图书馆和食堂的日间工作时间内，连续测量了 SO、O、NO、NO、CO、CO、PM、PM 等化学污染物，并分析了空气中颗粒的浓度分布，讨论了 31 种不同粒径的颗粒分布情况。最后，采用模糊评价方法对商场和候车厅的实验数据进行了分析，结果如下：（1）图书馆和食堂的 PM 浓度在早晨 07:45 达到峰值，下午升高（分别为 59μg/m 和 48.9μg/m）；（2）图书馆 PM 和 PM 浓度之间的皮尔逊相关系数为 0.98，食堂 PM 和 SO 之间呈负相关，相关系数为-0.65，PM 和 PM 之间始终呈高度正相关；（3）图书馆内高浓度颗粒与小粒径范围（0.25~0.45μm）有关；（4）通过模糊综合评价方法，图书馆的等级评价最高，候车厅最低。本研究增强了我们对公共建筑室内化学污染关系的认识，并强调了改善室内空气质量的迫切需要。
