青岛市某学校室内空气质量卫生学评价

目的了解学校教室、实验室、阅览室、体育馆、餐厅的室内空气质量,为保护学生身体健康、改善室内环境质量提供依据。方法对青岛市某学校学生日常活动场所的室内温度、湿度、风速、CO、CO2、甲醛、PM10、空气细菌总数共8项指标进行检测和分析。结果该学校室内污染较严重的是甲醛、可吸入颗粒物,场所的超标率分别为80%和50%;污染较轻微的是CO2和空气细菌总数,场所的超标率分别为20%和10%。室内甲醛浓度和CO2浓度、室内PM10浓度与室外PM10浓度、空气细菌总数与室内风速指标间的相关性具有统计学意义(P<0.05)。结论学校应采取定时通风、安装智能室内通风系统、使用符合卫生要求的课桌椅和装修材料以及绿化校园等有针对性的措施改善教室空气质量。

Hygiene assessment of indoor air quality in the school of Qingdao city

Objective To understand the status of indoor air quality in classroom,laboratory,reading room,gym and dining room of school,protect the students＇ health and supply basic data for improving the indoor environmental quality.Methods The daily activity places in one school were detected and analyzed in Qingdao city.8 items were determined including temperature,humidity,wind speed,CO,CO2,formaldehyde,inhalable particulate（PM10） and air bacterium.Results The pollution of formaldehyde and PM10 were serious in indoor air,the exceeding rates of these two indicators were 80% and 50%.CO2 and air bacterium belonged to slight pollution,the exceeding rates of these two indicators were 20% and 10%.The correlation between the indoor concentrations of formaldehyde and CO2,indoor air PM10 and outdoor air PM10,air bacterium and indoor wind speed had statistical significance（P0.05）.Conclusion It is necessary for the school to take corresponding countermeasures such as taking natural ventilation at regular time,fixing intelligent artificial ventilation system,using desks and chairs which should meet the hygienic requirements,school greening to improving the indoor air quality.