梁晓军, 嵇心怡, 耿政祥, 张宏斌, 孙强, 赵萍, 朱醇. 江苏省昆山市新装修住宅室内甲醛的污染特征[J]. 环境与职业医学, 2020, 37(10): 994-998. DOI: 10.13213/j.cnki.jeom.2020.20218
引用本文: 梁晓军, 嵇心怡, 耿政祥, 张宏斌, 孙强, 赵萍, 朱醇. 江苏省昆山市新装修住宅室内甲醛的污染特征[J]. 环境与职业医学, 2020, 37(10): 994-998. DOI: 10.13213/j.cnki.jeom.2020.20218
LIANG Xiao-jun, JI Xin-yi, GENG Zheng-xiang, ZHANG Hong-bin, SUN Qiang, ZHAO Ping, ZHU Chun. Indoor formaldehyde pollution characteristics in newly decorated residences in Kunshan of Jiangsu Province[J]. Journal of Environmental and Occupational Medicine, 2020, 37(10): 994-998. DOI: 10.13213/j.cnki.jeom.2020.20218
Citation: LIANG Xiao-jun, JI Xin-yi, GENG Zheng-xiang, ZHANG Hong-bin, SUN Qiang, ZHAO Ping, ZHU Chun. Indoor formaldehyde pollution characteristics in newly decorated residences in Kunshan of Jiangsu Province[J]. Journal of Environmental and Occupational Medicine, 2020, 37(10): 994-998. DOI: 10.13213/j.cnki.jeom.2020.20218

江苏省昆山市新装修住宅室内甲醛的污染特征

Indoor formaldehyde pollution characteristics in newly decorated residences in Kunshan of Jiangsu Province

  • 摘要: 背景

    随着新装修居室越来越多,室内甲醛污染受到越来越多的关注。

    目的

    了解江苏省昆山市新装修居室内甲醛污染水平及变化规律。

    方法

    选取昆山市新装修或重装修居民住房40户,调查房屋基本情况,并分别在2019年冬季(1—2月)和夏季(7—8月)检测室内温湿度和甲醛浓度。冬夏两季分别设置检测点162个,采集甲醛样本324个。

    结果

    冬夏两季甲醛质量浓度分别为(0.021 9±0.011 9)、(0.096 3±0.107 2)mg·m-3,夏季高于冬季(Z=-5.484,P < 0.001),冬夏季超标率分别为0.0%、28.3%,最大值为1.040 3 mg·m-3,超标10.4倍。冬夏两季甲醛浓度在住宅类型、住宅档次、房间数量、装修风格、房屋面积、装修花费、检测时是否入住及取暖方式的分布上差别均无统计学意义(P>0.05)。夏季甲醛浓度在不同房间类型间(H=8.800,P=0.030)和装修家具是否以新家具为主间(Z=9.259,P < 0.001)差别有统计学意义。甲醛浓度与温度在冬夏两季均呈正相关(冬季:r=0.288;夏季:r=0.151;P < 0.05),与湿度在冬季呈负相关(r=-0.243,P < 0.05),在夏季相关性无统计学意义(P=0.841)。冬季检测时距装修完成时间平均为130.1 d,夏季为303.3 d,冬夏两季均未发现随装修完成时间的延长,甲醛浓度有降低的趋势(均P>0.05)。

    结论

    昆山市新装修居室内甲醛浓度夏季高于冬季。随着温度的升高,甲醛浓度会明显升高。新家具的使用与昆山市甲醛污染可能有关。

     

    Abstract: Background

    As more residences are decorated, indoor formaldehyde pollution has drawn growing attention.

    Objective

    This study investigates the formaldehyde pollution levels and change trends in newly decorated residences in Kunshan of Jiangsu Province.

    Methods

    Forty newly decorated or redecorated residences in Kunshan were selected and investigated. The basic information of the residences were collected and the selected residences' indoor temperature, humidity, formaldehyde levels in winter (January to February) and summer (July to August) were evaluated in 2019. A total of 324 indoor air samples were collected from 162 sampling sites.

    Results

    The average formaldehyde concentration was (0.021 9±0.011 9) mg·m-3 and (0.096 3±0.107 2) mg·m-3 in winter and summer respectively, with a significant difference (Z=-5.484, P < 0.001). The unqualified rate was 0.0% and 28.3% in winter and summer respectively, and the maximum value in summer was 1.040 3 mg·m-3, 10.4 times higher than the relevant standard limit. The seasonal formaldehyde distributions were not different by newly-built or pre-owned residences, residence grade, bedroom number, decoration style, floor space, decoration costs, whether occupancy at detection, and heating mode (P>0.05). The formaldehyde concentrations in summer were different between different types of rooms (H=8.800, P=0.030) and whether most furniture is new (Z=9.259, P < 0.001). Formaldehyde concentration was positively correlated with temperature in winter and summer (winter:r=0.288, summer:r=0.151, P < 0.05), negatively with humidity in winter (r=-0.243, P < 0.05), but not with humidity in summer (P=0.841). The average days from complete decoration to formaldehyde detection was 130.1 and 303.3 d in winter and summer respectively. It was not found that the formaldehyde concentration decreased with the extension of days after completion of renovation in the two seasons (P>0.05).

    Conclusion

    The concentration of formaldehyde in newly decorated dwellings is higher in summer than in winter in Kunshan. Formaldehyde concentration will increase obviously with the increase of temperature. New furniture is likely to contribute to formaldehyde pollution in Kunshan.

     

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