北京与武汉部分儿童家庭室内空气中甲醛及挥发性有机物调查

Survey of formaldehyde and TVOC in indoor air in families with children in Beijing and Wuhan

目的了解北京和武汉春季儿童家庭室内空气中甲醛及挥发性有机物的污染水平。方法于2009年3—5月分别从北京和武汉各选取一家医院,采用随机数字的方法选取48户和78户儿童家庭作为研究对象,检测室内空气中甲醛、苯、甲苯、二甲苯和总挥发性有机物(TVOC)的浓度。结果武汉儿童家庭室内空气中甲醛浓度高于北京,超标率分别为88.46%和4.17%;北京室内空气中甲苯、二甲苯和TVOC浓度高于武汉,差异均有统计学意义(P<0.05)。结论本次调查的武汉儿童家庭室内空气甲醛污染比较严重。

Objective To know the levels of formaldehyde and total volatile organic compounds （TVOC） in indoor： air in the families with children between Beijing and Wuhan city. Methods A total of 48 and 78 families were randomly selected from hospitals in Beijing and Wuhan respectively from March to May in 2009. The indoor air concentrations of formaldehyde, benzene, toluene, xylene and TVOC were determined. Results The concentration of formaldehyde in indoor air＇in Wuhan was significantly higher than that in Beijing. The unqualified rate was 88.46% in Wuhan and 4.17% in Beijing. The concentration of toluene, xylene and TVOC in indoor air in Beijing city was significantly higher than that in Wuhan （P〈0,05）. Conclusion The indoor air nollution of formaldehvde is serious in the families with children in Wuhan.