Analysis Of Environmental Comfortability In Middle School Classroom And Its Improvement Strategy

Indoor comfortability mainly comes from the direct sense of indoor environment quality,which includes heat,sound,light and air quality aspects as the common factors,at the same time dually been impacted by the outdoor environment factors and the indoor human physical and physiological activities.Middle school classrooms are of high occupancy rate and intensity during daytime,the young students are normally in dynamic respiratory metabolism activity.The indoor environmental quality and comfortability are not only a direct impact on the physical and mental health of teachers and youth,but also deeply affect the classroom learning efficiency and teaching effect.Therefore,analysis of the middle school classroom environmental comfortability and proposes the corresponding improvement strategy/countermeasures for strengthening the education development of xinjiang as a multi-ethnic region has important practical significance.In recent years,the atmospheric environment pollution situation is more serious,the physical and mental health of teenagers is directly related to the development of the country’s social progress,the teaching and the environmental problems are more and more attention,continue to strengthen the teaching environment of related research,seeking efficiency,apply strong teaching environment monitoring and improvement measures,is currently the mainstream direction of the development of the teaching environment.Based on the Urumqi City 65 Middle School classroom as the research object,study of the indoor environment,the main research methods and contents are as follows:1.Objective Analysis:（a）the different space position classroom environment indicators monitoring（temperature,relative humidity,CO₂ concentration,total volatile organic compound（TVOC）,benzene series,PM10）,analyze the concentration distribution characteristics and existing problems;（b）the heating period,the heating duration classroom environment monitoring,analysis of the characteristic indexes and problems;2.Subjective Analysis:for different grade,nationality,gender of the students to carry out the heating period,and the investigation of subjective feeling of heating period teaching environment statistical analysis of data,such as heating period,the heating period subjective satisfaction.3.Subjective and Objective Comprehensive Analysis:by using the theory of grey correlation analysis of the influence of single pollution index satisfaction to the human body.Finally,through the above research results the following conclusions:1.Comparison of primary and secondary schools teaching in China environmental health standards,index of 6 items,TVOC overweight problems;2.Classroom space for temperature,humidity,carbon dioxide,TVOC,benzene series have a certain influence on the five indexes,due to the difference in the degree of natural light,the classroom toward to temperature,humidity,TVOC,benzene series have a certain influence on the four indexes,due to the differences of ventilation and natural lighting,floor for temperature,humidity,carbon dioxide,TVOC,benzene series 5 indicators have a certain degree of influence;The classroom level have less effect on the teaching environment indicators.3.During heating period and heating period of moisture,carbon dioxide,benzene,TVOC and PM10have significant impact.Benzene content mainly related to 2014 buildings to paint the wall.Xinjiang climate is dry,indoor obviously than the dry heating period.And CO₂,the monitoring of TVOC concentrations are heating period is higher than the heating period,owing to lack of indoor ventilation,the indoor heating period of high carbon dioxide and TVOC concentration.PM10 were related with the indoor dust and particulate matter in outdoor environment outside the classroom.4.During heating period that"better"and"moderate"big proportion of the students,rather than the heating period more than half of the students think"good",the heating period is higher than general heating period,due to the heating period and ventilation condition overall is good heating period.Students think"depressed"increase in the number of hours in the heating period is particularly in the afternoon,may be related to the study hall,outside the classroom activity decreases,the reason such as the days are short and the nights are more relevant.5.Through the grey correlation method,calculated for each factor’s influence on the indoor student satisfaction of indoor air quality.Warm period and heating period within the classroom air quality impact factors to the size of the grey correlation degree of student satisfaction in the classroom,namely indoor impact on satisfaction with the proportion of students from big to small of benzene content>TVOC carbon dioxide>>PM10,the influence factors of temperature and humidity.Accordingly,six problems and improvement measures:In view of the classroom space,there are three improvement measures:northeast toward（chaoyang）the classroom,low floor classroom and high floor all need with the aid of ventilation and avoid light reduce the concentration of TVOC and benzene series;Low floor classroom to strengthen ventilated and planting potted in two forms,weaken the concentration of carbon dioxide accumulation;High floor to use fan,avoid light curtain and thickening of the top three forms to reduce the room temperature,increase the humidity;During heating period,more frequently open the windows for ventilation,in order to reduce carbon dioxide in the classroom,the concentration of TVOC and benzene series.Students as far as possible don’t use correction fluid containing benzene content,fixed number of year of the school to extend the classroom dressing interval,use green environmental protection coating,in order to reduce benzene content in the classroom and TVOC content.In improving technology,suggest using fresh air system,the system in heating period can effectively strengthen ventilated,improving air quality in an all-round way.