西南地区高校冬季室内二氧化碳浓度的测试研究

以西南科技大学为研究对象，用便携式红外线二氧化碳分析仪对其冬季室内CO2浓度进行测试分析，测试大学教室课前课后及寝室有人状态下CO2的浓度，包括普查检测以及连续监测。普查检测结果显示20％的样本CO2超过国家规定的上限值（0．10％），且超标的样本在检测时都处于通风状态不佳时；连续监测则反映出室内CO2的增长与室内人数、房间体积以及通风情况的关系，建议尽量减小室内人员密度，增强通风，以此来确保高校师生身体健康。

CO2 Concentration in Rooms of Southwestern Colleges in Winter

In this paper, the carbon dioxide concentrations in classrooms before and after class as well as in dormitories being used were determined in winter by general checking and continous monitoring using Portable Infrared CO2 Analyzer in Southwest University of Science and Technology. The results of general checking showed that the samples with COs concentrations higher than the national standards （0. 10% ） acotmted for 20% of the total, and they were sampled at the condition of inadequate ventilation. The results of continuous monitoring showed that the increase of CO2 concentration was related to the number of people in a room, the space of a room and the situation of ventilation. So in order to ensure the health of teachers and students, the density of indoor people should be reduced, and attention should be paid more to ventilation in winter.