某医学院教室、宿舍内甲醛污染状况调查

Survey of formaldehyde pollution in classrooms and dormitories of a medical college

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 current status of indoor formaldehyde pollution of classrooms and dormitories on old and new campus of a medical college, and to analyze sources of formaldehyde, so as to provide measures for formalde- hyde pollution control and to ensure the health of teaehers and students. Methods From May 2012 to June 2012, 6 classrooms and 12 dormitories each on new and old campus were selected, which were of roughly equal area, decoration, and traffic conditions, with outdoor formaldehyde eoncentration below 0.080 mg/m3. Formaldehyde eoneentration of class- rooms and dormitories on new and old campus was examined as well as simultaneous measured indoor temperatures. T - test was used for measurement data,the result of P 〈 O. 05 was considered statistically significant. Results The formalde- hyde concentration on the new campus was （0. 103 ~ 0.037） mg/m3 for classrooms,and（0. 086 _＋ O. 016） mg/m3 for - dormitories ; the formaldehyde concentration on the old campus was （ 0.065 ~ O. 014） mg/m3 for classrooms and （ O. 064 ＋ 0. 015） mg/m3 for dormitories. Significant difference was found in formaldehyde concentration between classrooms and dormitories on the new and old campus （ t = 6.985, 3. 697,P 〈 0.05 ）. Conclusions The classrooms and dormitories on the new campus are more seriously polluted with formaldehyde, both exceeding national standard limit of indoor formalde- hyde coneentration of O. 080 mg/m3. The reasons may be that all elassrooms and dormitories were newly built and great quantities of wooden material were used during the decoration.