安徽省2004—2008年室内空气中甲醛浓度调查

目的了解室内甲醛污染现状，为修订《居室空气中甲醛的卫生标准》提供依据。方法收集全省9个市2004—2008年不同场所室内甲醛监测数据，并选择不同类型居室进行甲醛浓度的现场监测。结果2004—2008年居室内甲醛浓度总均值0．139mg／m^3。现场室内甲醛浓度监测结果为城市办公室均值为0．062mg／m^3，城市居民住宅卧室与厨房均值分别为0．029、0．028mg／m^3；城镇居民住宅卧室与厨房均值分别为0．034、0．036mg／m^3。居室装修1年以内的甲醛浓度明显高于1年以上（P〈0．01）。结论装修是造成居室内甲醛浓度增高的主要原因。

Investigation of Formaldehyde in Indoor Air in Anhui Province During 2004 - 2008

Objective To understand formaldehyde pollution in indoor air and provide evidences for revising the Hygienic Standard for Formaldehyde in Indoor Air. Methods Formaldehyde monitoring data were collected from 2004 to 2008, and different types of room were selected for on - site monitoring formaldehyde concentration. Results The total average value of formaldehyde concentration was 0. 139 mg/m^3 during 2004 - 2008. The mean degree of formaldehyde con- centration was 0. 062 mg/m^3 in urban offices, and the mean degrees in urban residential kitchens and bedrooms were 0. 029 mg/m^3 and 0. 028 mg/m^3, respectively. The value from town residents in the residential kitchens and bedrooms were 0. 034 mg/m^3 and 0. 036 mg/m^3 , respectively. Formaldehyde concentration from decorated room within one year was significantly higher than that in more than one year（ P 〈 0. 01 ）. Conclusion Decoration is the main reason for increasing the concentration of formaldehyde in indoor air; the results of the investigation provide a basis for the revision of hygienic standard for tbrmaldehyde in indoor air.