甲醛作为一种常见的装修型化学性室内空气污染物 ,以其来源广、水平高、持续时间长和毒性大等特点受到人们的广泛关注。研究表明 ,甲醛可以对机体健康产生多种不良影响。其中美国职业卫生阈值中将甲醛列为 2A类化合物———可疑人类致癌物[1] 。刘杰等[2 ] 报道了气态甲醛对小 Formaldehyde as a common decoration chemical indoor air pollutants, due to its wide source, high level, long duration and high toxicity and other characteristics by the people’s attention. Research shows that formaldehyde can have a variety of adverse health effects on the body. One of the United States occupational health threshold formaldehyde will be classified as 2A class compounds - Suspected human carcinogen [1]. Liu Jie et al [2] reported a small amount of gaseous formaldehyde