文档介绍：1 1
1
1 1
π
1
第 32卷第 4期环境科学与管理 Vol 32 No 4
2007年 4月 ENV IRO NM ENTAL SC IENCE AND M ANAGEM ENT Ap r 2007
文章编号: 1673 - 1212 (2007) 04 - 0070 - 02
室内空气中甲醛污染与防治
冷旭勇, 杨尽
(成都理工大学环境与土木工程学院,四川成都 610059)
摘要:甲醛是室内空气中最主要的污染物质之一,对人体健康有非常大的危害。本文采用国家标准方法———
酚试剂分光光度法对成都 50多处房屋室内的甲醛浓度及其变化规律作了具体的分析,结果显示,总样品甲醛
平均浓度为 0 141mg/m3 ,超标率为 50% ,各采样点甲醛最高浓度为 0 296mg/m3 ,超过国家标准值的 2倍多。
甲醛浓度水平随着时间的推移先是有一个升高的过程,然后才不断降低,所以建议延长空置时间,增加有效通
风量,请有关部门检验合格后方可入住。
关键词:甲醛; 酚试剂分光光度法; 变化规律; 建议
中图分类号: X502 文献标识码: A
The Pollution and Control of Formaldehyde in Indoor A ir
Leng Xuyong, Yang J in
(College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu 610059, China)
Abstract: Formaldehyde is one of the most important pollutants in indoor air, and it is very harmful for peop le s health. U sing
the national standard method—Folin spectrophotometry, this paper makes detailed analysis of the concentration and the changing
law of formaldehyde existing in the 50 more houses in Chengdu. The result shows that the average concentration of the samp le is
0. 141mg/m3 , going beyond the standard 50% , and the highest one is 0. 296 mg/m3 , which is two more times of the national
standard. W ith time going on, the concentration of formaldehyde will first go up, and then go down gradually. So it is suggested
that before moving in, it is better to p rolong the