某高中校园内颗粒物尘源调查实测与分析

Investigation and Analysis of Particulate Dust Sources in a High School Campus

为了分析某高级中学校园内的尘源,先对该校二年级师生进行了校园颗粒物问卷调查,结果显示,被调查者的认知存在一定的区别。为了进一步了解该校园的尘源情况,对校园内典型地点进行了颗粒物浓度测试,并对设置空气净化器的教室进行了数据测试和对比分析。研究结果表明,不同粒径颗粒物的尘源不尽相同。室外的尘源主要来自人员活动,学校周边的建筑施工扬尘以及相邻公路机动车尾气的排放。教室内的尘源主要来自人员活动,粉笔板书和门窗敞开时室外污染物的扩散。

In order to analyze the dust source in a senior secondary school campus,the particles questionnaire survey was carried out for the second grade teachers and students.The results show that there is a certain difference between the respondents’cognition.In order to further understand the dust source of the campus,the particle concentration test was carried out on the typical sites in the campus,and the data testing and the comparative analysis were carried out in the classroom where the air purifier was set up.The results show that the dust source of different particle size is not the same.Outdoor dust mainly from the activities of the staff,the construction dust around the school and the motor vehicle exhaust emissions on adjacent road?Indoor dust mainly from the activities of people,chalk blackboard writing and the spread of outdoor pollutants when doors and windows open.