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    王灵秋, 董钧铭, 徐林, 唐礼营, 梁灿, 李再林, 王德祥, 韦刚. 安顺市公共场所装修后室内甲醛浓度变化规律研究[J]. 环境卫生学杂志, 2015, 5(3): 226-229, 233. DOI: 10.13421/j.cnki.hjwsxzz.2015.03.009
    引用本文: 王灵秋, 董钧铭, 徐林, 唐礼营, 梁灿, 李再林, 王德祥, 韦刚. 安顺市公共场所装修后室内甲醛浓度变化规律研究[J]. 环境卫生学杂志, 2015, 5(3): 226-229, 233. DOI: 10.13421/j.cnki.hjwsxzz.2015.03.009
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    WANG Lingqiu, DONG Junming, XU Lin, TANG Liying, LIANG Can, LI Zailin, WANG Dexiang, WEI Gang. Formaldehyde Variation after Decoration in Anshun Public Places[J]. Journal of Environmental Hygiene, 2015, 5(3): 226-229, 233. DOI: 10.13421/j.cnki.hjwsxzz.2015.03.009
    Citation: WANG Lingqiu, DONG Junming, XU Lin, TANG Liying, LIANG Can, LI Zailin, WANG Dexiang, WEI Gang. Formaldehyde Variation after Decoration in Anshun Public Places[J]. Journal of Environmental Hygiene, 2015, 5(3): 226-229, 233. DOI: 10.13421/j.cnki.hjwsxzz.2015.03.009
    shu

    安顺市公共场所装修后室内甲醛浓度变化规律研究

    Formaldehyde Variation after Decoration in Anshun Public Places

      摘要
    • 摘要:
      目的 了解安顺市新装修公共场所空气中甲醛质量浓度的动态变化规律及其影响因素。
      方法 2014年1-10月对安顺市刚装修竣工的50户公共场所进行室内空气中甲醛质量浓度的监测, 同时记录温度、湿度和大气压力, 用t检验、卡方检验、Spearman秩相关分析各因素对甲醛质量浓度变化的影响。
      结果 甲醛质量浓度在冬季装修完4个月内变化不显著(P > 0.05)。装修完4个月后, 甲醛质量浓度随着气温上升而逐步上升, 于第7个月达到高峰(0.202 mg/m3), 此后甲醛质量浓度逐步下降, 10个月后合格率达到72.5%;夏季装修的场所在装修完后甲醛质量浓度不断上升, 经2-3个月达到最高(0.251 mg/m3), 然后下降, 经6个月后合格率达70%。通过统计分析, 温度、湿度对甲醛质量浓度的影响有统计学意义(P < 0.05)。对温度与甲醛质量浓度进行了Spearman相关性分析, 二者呈显著正相关(χ2=0.867, P=0.007, P < 0.01), 差异有统计学意义; 对湿度与甲醛质量浓度进行卡方分析(χ2=5.20, P=0.02, P < 0.05), 差异有统计学意义。
      结论 新装修公共场所空气中甲醛质量浓度受季节的影响, 随着室温、湿度、时间的改变其扩散也发生相应变化, 甲醛扩散与温度呈正相关。

       

      Abstract:
      Objective To understand the dynamic change of formaldehyde in the indoor air of new decorated public places and its influencing factors.
      Methods The concentration of formaldehyde in the indoor air of 50 public places in Anshun City, which had been finished decorating, was monitored from January 2014 to October 2014; temperature, humidity and atmospheric pressure were recorded at the same time; the influence of various factors on the change of formaldehyde concentration was analyzed by using t test, chi-square test and Spearman rank correlation.
      Results The change of formaldehyde in 4 months after decoration during winter time was not significant (P > 0.05). The concentration of formaldehyde increased gradually with the rise of temperature in 4 months after decoration in winter time, with a peak value in July (0.202 mg/m3), then it declined gradually; the qualified rate could reach to 72.5% in 10 months. The concentration of formaldehyde decorated in summer time was increasing, it was rising to the top (0.2511 mg/m3) in 2-3 months after decoration, and it was then decreasing; the qualified rate was 70% in 6 months. Through statistical analysis, the influence of temperature and humidity on the concentration of formaldehyde was statistically significant (P < 0.05). There was a significantly positive correlation of temperature with formaldehyde concentration tested by Spearman correlation analysis (χ2=0.867, P=0.007, P < 0.01). There was also a statistical significance on the humidity with formaldehyde concentration tested by chi-square analysis (χ2=5.20, P=5.20, P < 0.05).
      Conclusions The concentration of formaldehyde in indoor air of new decorated public places could be influenced by the season. With the diffusion of formaldehyde varied with the change of temperature, humidity and time, the diffusion of formaldehyde was positively correlated with temperature.

       

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