A case study on identification of airborne organic compounds and time courses of their concentrations in the cabin of a new car for private use.
A case study on identification of airborne organic compounds and time courses of their concentrations in the cabin of a new car for private use.
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DOI：
10.1016/j.envint.2005.04.009
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发表时间：
2006
影响因子：
11.8
通讯作者：
Toshiaki Yoshida;I. Matsunaga
中科院分区：
文献类型：
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作者：
Toshiaki Yoshida;I. Matsunaga
汽车的驾驶室可以被认为是生活环境的一部分，因为许多人长时间进行商务、购物、娱乐或旅行活动。然而，人们对汽车内部使用的内饰材料扩散的有机化合物造成的内部空气污染知之甚少。在本研究中，鉴定了新车内部空气中的化合物，并在交付后（1999年7月）3年多的时间里检查了其浓度的时间进程。共鉴定出162种有机化合物，涉及多种脂肪烃和芳香烃。高浓度正壬烷（产后第二天为 458 μg/m3）、正癸烷（1301 μg/m3）、正十一烷（1616 μg/m3）、正十二烷（716 μg/m3）、正十三烷（320 μg/m3）、1-十六烯（768 μg/m3）、乙苯（361 μg/m3）、二甲苯（4003 μg/m3）和 2,2'-偶氮二（异丁腈）（429 μg/m3），交付后第二天除甲醛（TVOC）之外的所有化合物的测定浓度总和约为 14 mg/m3。大多数化合物的浓度随着时间的推移而降低，但随着内部温度的升高而增加。第二年夏天（2000年7月）TVOC浓度约为初始浓度的十分之一。在为期3年的研究期间，夏季TVOC浓度超过了Seifert (1995) [Seifert B.挥发性有机化合物。见：Maroni M、Seifert B、Lindvall T，编辑。室内空气质量。一本综合性的参考书。空气质量专着，卷。 3. 荷兰：爱思唯尔科学； 1995 年。 819–21]。根据多元线性回归分析，内部温度和分娩后经过的天数是影响大多数化合物内部浓度的主要因素。这项研究的结果为调查汽车车厢内由于有机化合物从内饰材料中扩散而造成的空气污染提供了有用的基础数据。
The cabin of an automobile can be considered to be a part of the living environment because many people spend long periods of time during business, shopping, recreation or travel activities. However, little is known about the interior air contamination due to organic compounds diffusing from the interior materials used in the interior of automobiles. In the present study, the compounds in the interior air of a new car were identified, and the time courses of their concentrations were examined for over 3 years after the delivery (July, 1999). A total of 162 organic compounds, involving many aliphatic hydrocarbons and aromatic hydrocarbons, were identified. High concentrations of n-nonane (458 μg/m3on the day following delivery), n-decane (1301 μg/m3), n-undecane (1616 μg/m3), n-dodecane (716 μg/m3), n-tridecane (320 μg/m3), 1-hexadecene (768 μg/m3), ethylbenzene (361 μg/m3), xylene (4003 μg/m3) and 2,2′-azobis(isobutyronitrile) (429 μg/m3) were detected, and the sum of the concentrations determined for all compounds excluding formaldehyde (TVOC) was approximately 14 mg/m3on the day after the delivery. The concentrations of most compounds decreased with time, but increased with a rise of the interior temperature. The TVOC concentration in the next summer (July, 2000) was approximately one-tenth of the initial concentration. During the 3-year study period, the TVOC concentrations in summer exceeded the indoor guideline value (300 μg/m3) proposed by Seifert (1995) [Seifert B. Volatile organic compounds. In: Maroni M, Seifert B, Lindvall T, editors. Indoor air quality. A comprehensive reference book. Air quality monographs, vol. 3. Netherlands: Elsevier Science; 1995. p. 819–21]. The interior temperature and days lapsed after delivery were the main factors affecting the interior concentrations of most compounds according to multiple linear regression analysis. The results of this study offer useful fundamental data for investigations on air pollution in automotive cabins due to the organic compounds diffusing from the interior materials.