Changes in the concentration of volatile organic compounds and aldehydes in newly constructed houses over time
Changes in the concentration of volatile organic compounds and aldehydes in newly constructed houses over time
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新建房屋中挥发性有机化合物和醛类浓度随时间的变化
DOI：
10.1007/s13762-019-02503-3
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发表时间：
2019
影响因子：
3.1
通讯作者：
C. Mori
中科院分区：
文献类型：
--
作者：
N. Suzuki;H. Nakaoka;Y. Nakayama;K. Takaya;K. Tsumura;M. Hanazato;S. Tanaka;K. Matsushita;R. Iwayama;C. Mori
如今，人们大部分时间都在室内度过，因此，由于室内化学品的暴露，室内环境极大地影响了人类的健康。因此，在与日本房屋建筑商的合作下，本文汇编了具有低挥发性有机化合物浓度的建筑材料的列表。从7个新建住宅（7个卧室和7个客厅）的空气质量样品中采集并检测了64种挥发性有机化合物和2种醛类。从没有家具或家用物品的房子中获得空气样本，并在建造后1周取样，并在一个月后重复取样。并将测试结果与2009年新建住宅室内空气质量调查结果进行了比较。施工一周后，二甲苯、苯乙烯、甲苯、甲醛和三氯甲烷的浓度不到日本标准指导值的一半。样品中检出的主要物质为2-丁酮、丙酮、乙醇、乙酸乙酯、乙酸丁酯和十一烷。通过Wilcoxon符号秩检验检查物质浓度随时间变化的统计学显著性。施工后一个月，除乙酸丁酯外，所有化学物质的浓度都发生了统计学上的显著降低。居室内挥发性有机化合物总量的中位数为291微克/立方米，最高值为354微克/立方米，均低于日本挥发性有机化合物总量400微克/立方米的暂定目标。这些数值明显低于其他研究人员记录的数值。本研究的结论是，使用实验确定的低挥发性有机化合物材料有效地改善了室内空气质量。
Nowadays, people spend most of their time indoors; thus, the indoor environment greatly affects human health because of exposure to chemicals indoors. Thus, in collaboration with Japanese house builders, a list of building materials having low volatile organic compound concentrations was compiled herein. The air-quality samples from seven newly built houses (seven bedrooms and seven living rooms) were collected and tested for 64 volatile organic compounds and two aldehydes. Air samples were obtained from the house with no furniture or household goods and were sampled 1 week after construction and repeated after a month. Furthermore, the test results with a 2009 survey of indoor air quality in newly constructed houses were compared. One week after construction, the xylene, styrene, toluene, formaldehyde, and ethylbenzene concentrations were less than half the standard guideline values set in Japan. The main substances detected in the samples were 2-butanone, acetone, ethanol, ethyl acetate, butyl acetate, and undecane. The statistical significance of the changes in substance concentrations over time was examined via Wilcoxon signed-rank test. One month after construction, the concentrations of all chemical substances had undergone a statistically significant reduction, except butyl acetate. The median of total volatile organic compounds in living rooms was 291 µg/m3, and the maximum was 354 µg/m3; both were under Japan’s provisional total volatile organic compound target of 400 µg/m3. These values were significantly lower than those recorded by other researchers. This study concludes that using experimentally identified low volatile organic compound materials effectively improves the indoor air quality.
低挥发性有机化合物涂料的物质排放率
DOI：
10.1007/s13762-018-2093-0
发表时间：
2018
影响因子：
3.1
作者：
Suzuki N.;Nakaoka H.;Hanazato M.;Nakayama Y.;Takaya K.;Mori C.
通讯作者：
Mori C.