摘要
为了解西安市新装修居民室内空气质量状况,针对室内的主要空气污染物甲醛、TVOC(总挥发性有机物)、苯系物、氨、放射性氡,依据GB/T 18883—2002《室内空气质量标准》,在2015年共进行了136批次866个空气样品的收集与检测。检测结果表明新装修室内空气污染主要以有机污染物为主,其中各污染物浓度的平均检测值依次为甲醛0.14 mg/m^3、TVOC为1.24 mg/m^3、苯0.07 mg/m^3、甲苯0.06 mg/m^3、二甲苯0.05 mg/m^3、氨0.06 mg/m^3、放射性氡46.5 Bq/m^3;甲醛与TVOC超标率较高,分别达到了81.6%和67.6%。此外采用标准指数法对甲醛进行评价分析,可以得出甲醛的释放量与温度相关,温度越高,在一定时间内甲醛释放量相对越多。
in 2015,866 air samples were collected and tested to investigate the indoor air quality of the newly decorated rooms in Xi＇an. The mean concentration of formaldehyde,TVOC,benzene,methyl benzene,methylbenzene,dimethylbenzen,Rn and NH_3 was 0. 14 mg / m^3,1. 24 mg /m^3,0. 07 mg / m^3,0. 06 mg /m^3,0. 05 mg /m^3,0. 06 mg /m^3,and 46. 5 Bq/m^3 respectively. The formaldehyde and TVOC were much higher and exceeded the standard limits by 81. 6% and 67. 6% separately,which meant indoor air of residential houses in Xi＇an was mainly polluted by organic pollutants. In addition,the standard index method was used to evaluate the pollution level of formaldehyde,and the results showed that the amount of formaldehyde released was related with the temperature,the higher the temperature,the more formaldehyde was released.
出处
《环保科技》
2016年第3期36-38,64,共4页
Environmental Protection and Technology
关键词
室内空气污染
室内装修
甲醛
温度
indoor air pollution
indoor decoration
formaldehyde
temperature
