摘要
[目的 ]观察开窗时间对室内空气中苯和甲苯浓度的影响。 [方法 ]苯和甲苯浓度的测定方法按照GB1173 7 89。选 16间新装修房间 ,竣工后第 2天开始观察 ,随机分为 4组 ,每 4间房间为一组 ,各组每天的开窗时间分别的 0、2、4、6h。隔日测定苯和甲苯的浓度 ,共 9d。 [结果 ]①苯 :2、4h组与 0h组 (对照组 )比较差异无显著性 :6h组与对照组比较差异有显著性 (P <0 .0 5 )。与本组第 1天的浓度比较 ,0、2、4、6h组分别在第 7、5、7、3天以后差异有显著性 (P <0 .0 5 )。②甲苯 :2、4、6h组与对照组比较分别在第 9、3、7天以后差异有显著性 (P <0 .0 1、P <0 .0 5、P <0 .0 5 ) ;0、2、4、6h组与本组第 1天的浓度比较分别在第 5、3、3、3天以后差异有显著性 (P <0 .0 5 )。 [结论 ]开窗时间越长 。
To observe the concentration of benzene and toluene in indoor air influeneed by window's open-time. The concentrations of benzene and toluene were determined according to GB11737-89.16 rooms the next day afte decoration were randomly divided into 4 groups each per 4 rooms,their window's open-time were 0,2,4,6h per day,respectively.The concentrations of benzene and toluene were monitored every two days until the 9 day. (1) for benzene,there was no significant difference between 2h,4h open-time group and the control group.There was significant difference between 6h open-time group and the control group since the 5^(th) day (P<0.05). There was significant difference between concentrations of 0,2,4,6h open-time group and its 1^(st) day concentration since the 7^(th),5^(th),7^(th),3^(rd) day,respectively(P<0.05).(2)For toluene,there was significant difference between 2,4,6h open-time group and the control group since the 9^(th),3^(rd),7^(th) day,respectively (P<0.01?P<0.05?P<0.05). There was significant difference between concentration of 0,2,4,6h open-time group and its 1st day concentration since the 5^(th),3^(rd),3^(rd),3^(rd) day,respectively(P<0.05). [Conclusion] The open-time was longer,the level of benzene and toluene descended faster.
出处
《环境与职业医学》
CAS
北大核心
2004年第5期408-410,共3页
Journal of Environmental and Occupational Medicine
