【摘要】 目的了解南宁市新装住宅室内空气甲醛浓度水平、变化情况和影响因素。方法 2004-2011年,共选择新装住宅的1 437个房间,测量其室内空气甲醛浓度,将结果分别按不同的年份、月份和房间类型归类分析。结果 8年间,南宁市室内空气甲醛浓度总超标率为50.6%,超标率、超标倍数和浓度水平,总体呈下降趋势;1年中平均气温最高的6-8月超标率最高,5、9、10月等次高温月份次之,超标率和超标倍数的变化基本和温度的变化呈显著性正相关;"书房"的超标率(57.1%)、"其他"房间的超标倍数(20.0)分别最高,"客厅"(45.6%,9.00倍)则最低。结论温度是影响南宁等湿度变化较小地区的室内空气中甲醛浓度高低的主要因素,通风效果和单位面积内"含"甲醛的装修材料和家具数量是重要因素。更多还原

【Abstract】 Objective The study was conducted to assess the levels, changes, and influencing factors of indoor formaldehyde concentration in newly decorated apartments in Nanning. Methods A total of 1437 rooms in newly decorated apartments were selected between 2004 and 2011, and the concentration of indoor formaldehyde was determined. The results were classified and analyzed by year, month, and room type. Results During the eight years, the overall non-compliance rate of indoor formaldehyde level in Nanning was 50.6%, with an overall declining trend in the non-compliance rate, multiplication of non-compliance, and concentration. The non-compliance rate was the highest in June to August, the months with the highest average air temperature,followed by May, September, and October. The changes in non-compliance rate and multiplication of non-compliance showed significant positive correlations with the change in air temperature. "Den" and "other room" had the highest non-compliance rate and multiplication of non-compliance, respectively(57.1% and 20.0 times); whereas "living rooms" was the lowest on both indicators(45.6%, 9.00 times). Conclusion Temperature is the primary factor influencing indoor formaldehyde concentration in Nanning and other regions with minor humidity change. Effectiveness of ventilation and the amount of formaldehyde-containing decoration materials and furnitures per unit area are the important factors.更多还原