Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology, Beijing 100054, China.
State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100194, China.
Int J Environ Res Public Health. 2022 Jun 9;19(12):7048. doi: 10.3390/ijerph19127048.
In modern societies, the air quality in vehicles has received extensive attention because a lot of time is spent within the indoor air compartment of vehicles. In order to further understand the level of air quality under different conditions in new vehicles, the vehicle interior air quality (VIAQ) in new vehicles with three different brands was investigated under static and driving conditions, respectively. Air sampling and analysis are conducted under the requirement of HJ/T 400-2007. Static vehicle tests demonstrate that with the increasing of vehicle interior air temperature in sunshine conditions, a higher concentration and different types of volatile organic compounds (VOCs) release from the interior materials than that in the environment test chamber, including alkanes, alcohols, ketones, benzenes, alkenes, aldehydes, esters and naphthalene. Driving vehicle tests demonstrate that the concentration of VOCs and total VOCs (TVOC) inside vehicles exposed to high temperatures will be reduced to the same level as that in the environment test chamber after a period of driving. The air pollutants mainly include alkanes and aromatic hydrocarbons. However, the change trends of VOCs and TVOC vary under different conditions according to various kinds of factors, such as vehicle model, driving speed, air exchange rate, temperature, and types of substance with different boiling points inside the vehicles.
在现代社会，由于人们在车内的时间较多，因此车内空气质量受到了广泛关注。为了进一步了解新车在不同条件下的空气质量水平，分别在静态和行驶条件下对三个不同品牌的新车车内空气质量（VIAQ）进行了调查。根据 HJ/T 400-2007 的要求进行空气采样和分析。静态车辆测试表明，在阳光照射下，随着车内空气温度的升高，车内材料释放出的挥发性有机化合物（VOC）浓度更高，种类也更多，包括烷烃、醇类、酮类、苯系物、烯烃、醛类、酯类和萘。行驶车辆测试表明，经过一段时间的行驶后，暴露在高温下的车内 VOCs 和总挥发性有机化合物（TVOC）的浓度将降低到与环境测试舱相同的水平。空气污染物主要包括烷烃和芳烃。然而，根据车辆型号、行驶速度、空气交换率、温度以及车内不同沸点物质的种类等各种因素的不同，VOCs 和 TVOC 的变化趋势也会有所不同。
