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目的了解某医学院新、老校区教室、宿舍室内甲醛污染现状,分析甲醛来源,为控制甲醛污染提供措施,以保证广大师生的身体健康。方法 2012年5月—2012年6月选取某医学院新、老校区面积相当、装修状况相当的学生教室各6个,宿舍各12个。所选教室、宿舍所处位置的交通状况基本相同,且其室外甲醛的浓度均在0.080mg/m3以下。对新、老校区教室和宿舍内甲醛浓度进行检测,同时测定室内温度。计量资料采用t检验,P<0.05为差异有统计学意义。结果新校区教室甲醛浓度(0.103±0.037)mg/m3,宿舍(0.086±0.016)mg/m3;老校区教室甲醛浓度(0.065±0.014)mg/m3,宿舍(0.064±0.015)mg/m3。新、老校区教室和宿舍甲醛浓度比较差异均有统计学意义(t=6.985、3.697,均P<0.05)。结论新校区教室、宿舍内甲醛污染状况较严重,均超过室内甲醛浓度国家标准限制0.080 mg/m3,分析其原因可能是因为新校区教室、宿舍装修过程中使用了大量木质材料。
Objective To understand the status of indoor formaldehyde pollution in new and old campus classrooms and dormitories of a medical school, analyze the sources of formaldehyde, and provide measures to control formaldehyde pollution so as to ensure the health of teachers and students. Methods From May 2012 to June 2012, six new and old school districts were selected, each with 6 classrooms and 12 dormitories, all of which had the same size and decoration. Selected classrooms, dormitories located traffic conditions are basically the same, and the concentration of outdoor formaldehyde are below 0.080mg / m3. For new and old campus classrooms and dormitory formaldehyde concentration test, while measuring the indoor temperature. Measurement data using t test, P <0.05 for the difference was statistically significant. Results Formaldehyde concentration (0.103 ± 0.037) mg / m3 and dormitory (0.086 ± 0.016) mg / m3 for classrooms in the new campus and 0.064 ± 0.015 mg / m3 for dormitory (0.065 ± 0.014 mg / m3). The new and old campus classrooms and dormitory formaldehyde concentrations were statistically significant differences (t = 6.985,3.697, all P <0.05). Conclusions Formaldehyde pollution in the classrooms and dormitories of the new campus is more serious, both of which exceed the limit of 0.080 mg / m3 of the national standard for indoor formaldehyde concentration. The reason for this may be that a large amount of wood materials are used in the classrooms and dormitories during the renovation of the new campus.